Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.026
Filtrar
1.
Mar Environ Res ; 171: 105456, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34474200

RESUMO

Commercial line-fishing catch rates of the endemic sciaenid Atractoscion atelodus in eastern-Australia were significantly affected by lunar phase. Periodic regression analysis indicated that catch rates were greatest during the full moon period and lowest during the new moon period. It is hypothesized that this observation is the result of the visual nocturnal feeding nature of A. atelodus, with schools of fish using the increased ambient light in the water column during the brighter part of the lunar phase to feed intensively. Increased feeding intensity during the brighter phase of the lunar month may also be related to spawning activity during the new moon phase; however this hypothesis remains to be tested. Annual commercial landings through a 71 year dataset (1950-2020) showed an approximately exponential decline, overlaid with periodic years of higher and lower landings. Such periods of higher landings were significantly positively correlated with coastal rainfall two and three years earlier, but not with rainfall in the same year or one, four or five years earlier. We hypothesize that increased coastal rainfall, likely in combination with unknown co-occurring factors, promotes increased recruitment success of A. atelodus, potentially through increased primary productivity in the nearshore marine environment. This translates into an increase in the fishable stock mainly two and three years later. If our hypothesis is correct, climate predictions of reduced rainfall in eastern Australia suggest a pessimistic outlook for this fishery.


Assuntos
Lua , Perciformes , Animais , Austrália , Pesqueiros
2.
Artigo em Inglês | MEDLINE | ID: mdl-34360187

RESUMO

Few studies have analyzed emotional educational experiences through physical education interventions. The objective of this study was to evaluate the effects on socio-emotional competencies of a physical education intervention (i.e., the MooN program) based on the instructional model known as the sports education model (SEM), compared to a physical education intervention based on the traditional model of direct instruction (TM-DI) in preadolescents. The sample consisted of 170 students between 10 and 13 years old (mean age: M = 10.76; standard deviation: SD = 0.73). Participants were randomly assigned to the experimental group (SEM; n = 87) and the active control group (TM-DI; n = 83). In the experimental group, the SEM-based intervention was applied, while in the active control group, an intervention based on the TM-DI was developed. A quasi-experimental design with repeated pre-test and post-test measures and an active control group was used. The self-efficacy inventory for multiple intelligences (IAMI-40) was used to assess the children's socio-emotional competencies. The child perfectionism inventory was applied to evaluate the self-demand perfectionist efforts. The results confirmed that the MooN program (SEM intervention) promoted significant improvements in socio-emotional competencies. These findings support the potential of this physical education instructional model as an emotional education pathway for the socio-emotional improvement of preadolescent students.


Assuntos
Lua , Educação Física e Treinamento , Adolescente , Criança , Emoções , Humanos , Autoeficácia , Estudantes
3.
Sensors (Basel) ; 21(14)2021 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-34300469

RESUMO

Space exploration has attracted significant interest by government agencies and the scientific community in recent years in an attempt to explore possible scenarios of settling of facilities on the Moon and Mars surface. One of the important components in space exploration is related with the understanding of the geophysical and geotechnical characteristics of the surfaces of planets and their natural satellites and because of the limitation of available extra-terrestrial samples, many times researchers develop simulants, which mimic the properties and characteristics of the original materials. In the present study, characterization at the grain-scale was performed on the Mojave Mars Simulant (MMS-1) with emphasis on the frictional behavior of small size samples which follow the particle-to-particle configuration. Additional characterization was performed by means of surface composition and morphology analysis and the crushing behavior of individual grains. The results from the study present for the first time the micromechanical tribological response of Mars simulant, and attempts were also made to compare the behavior of this simulant with previously published results on other types of Earth and extra-terrestrial materials. Despite some similarities between Mars and Moon simulants, the unique characteristics of the MMS-1 samples resulted in significant differences and particularly in severe damage of the grain surfaces, which was also linked to the dilation behavior at the grain-scale.


Assuntos
Lua , Voo Espacial , Planeta Terra , Grão Comestível , Meio Ambiente Extraterreno
4.
Epilepsy Behav ; 121(Pt A): 108070, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34077900

RESUMO

BACKGROUND: Psychogenicnonepilepticseizures (PNES) lack the abnormal electrographical discharges in electroencephalogram seen in epileptic seizures. The notion of the effects of meteorological factors and lunar phases onoccurrence of seizures in patients with PNES has been the subject of very few research studies and the available evidence in the literature is equivocal. In this study, we aimed to study the influence oflunarphases and meteorological factors on the frequency of PNES and its semiological categories. METHODS: We retrospectively reviewed the medical records of patients discharged with a diagnosis of PNES from our epilepsy monitoring unit in a 3-year period. The 119 patients who met the inclusion criteria were categorized into hypermotor, hypomotor, or intact sensorium based on semiology of their seizures. The occurrence of PNES, in total and in each semiological category, was correlated with the daily average temperature, atmospheric pressure, and the 4 lunar phases. RESULTS: There were 31.8% and 11.1% more-than-expected captured seizures when the average daily atmospheric pressure was lower or higher, respectively, of what is generally considered a comfortable atmospheric pressure. No consistent relation was found between the full moon phases and occurrence of PNES. CONCLUSION: A significant association between atmospheric pressure and the occurrence of nonepileptic seizures was found, whereas no consistent increase in PNES was observed during the full moon phases. There is still an open debate about the effect of the lunar phases on human behavior and neurological disorders such as PNES.


Assuntos
Lua , Convulsões , Eletroencefalografia , Humanos , Conceitos Meteorológicos , Estudos Retrospectivos , Convulsões/diagnóstico , Convulsões/epidemiologia
5.
PLoS One ; 16(4): e0249962, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33909656

RESUMO

In-situ resource utilization (ISRU) is increasingly acknowledged as an essential requirement for the construction of sustainable extra-terrestrial colonies. Even with decreasing launch costs, the ultimate goal of establishing colonies must be the usage of resources found at the destination of interest. Typical approaches towards ISRU are often constrained by the mass and energy requirements of transporting processing machineries, such as rovers and massive reactors, and the vast amount of consumables needed. Application of self-reproducing bacteria for the extraction of resources is a promising approach to reduce these pitfalls. In this work, the bacterium Shewanella oneidensis was used to reduce three different types of Lunar and Martian regolith simulants, allowing for the magnetic extraction of iron-rich materials. The combination of bacterial treatment and magnetic extraction resulted in a 5.8-times higher quantity of iron and 43.6% higher iron concentration compared to solely magnetic extraction. The materials were 3D printed into cylinders and the mechanical properties were tested, resulting in a 400% improvement in compressive strength in the bacterially treated samples. This work demonstrates a proof of concept for the on-demand production of construction and replacement parts in space exploration.


Assuntos
Ferro/metabolismo , Shewanella/metabolismo , Força Compressiva , Ferro/análise , Ferro/isolamento & purificação , Magnetismo , Marte , Minerais/química , Minerais/farmacologia , Lua , Impressão Tridimensional , Shewanella/química , Shewanella/efeitos dos fármacos , Shewanella/crescimento & desenvolvimento , Dióxido de Silício/química , Solo/química
6.
Artigo em Inglês | MEDLINE | ID: mdl-33801068

RESUMO

The aim of the present study was to investigate the association among lunar cycle, menstrual cycle onset, and subjective sleep quality. Menstrual cycle onset data from the six most recent menstrual cycles were obtained for 529 women (aged 25-39 years) using the smartphone app Luna Luna. We also collected questionnaire survey data on sleep quality from each participant. Overall, there was no association between the onset of menstrual cycle and lunar phase. Interestingly, the proportion of good sleepers with menstrual cycle beginning during the light period was significantly higher than that during the dark period, while the proportion of poor sleepers with menstrual cycle beginning during the dark period was significantly higher than that during the light period. When participants were categorized by the combination of lunar phases (light, dark, neutral periods) in the two most recent menstrual cycle onsets, the "both dark period" group and the "other (light and dark) period" group showed the lowest proportion of good sleepers. Menstrual cycle onset in the dark period was associated with a deterioration in subsequent subjective sleep quality, which was more apparent with consecutive onsets in the dark period or at a rapidly changing lunar phase.


Assuntos
Menstruação , Lua , Adulto , Feminino , Humanos , Ciclo Menstrual , Reprodução , Sono
7.
Chronobiol Int ; 38(6): 933-940, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33779457

RESUMO

This study aimed to assess the effects of the lunar cycle on diurnal variation of biological, i.e, hormonal, biochemical, and hematological, profiles of diurnally active healthy men. Blood samples of 20 males were collected on four occasions [full moon (FM) and new moon (NM), in the morning (06:00-07:00 h) and evening (19:00-20:00 h)]. The results showed that melatonin and testosterone levels and neutrophils count were lower during the FM as compared to the NM in the morning (p < .001; d = 4.13, p < .001; d = 3.84, p < .01; d = 0.77, respectively) and evening (p < .001; d = 6.36, p < .001; d = 4.03, p < .05; d = 1.07, respectively) samples. However, cortisol level was higher during the FM compared to the NM, in the morning (p < .001; d = 0.74) and evening (p < .001; d = 3.54). Hemoglobinemia was higher only in the evening during the FM compared to the evening of the NM (p < .01; d = 1.22). In summary, this study confirmed that lunar cycle can affect human biological parameters independently of time of day.


Assuntos
Melatonina , Lua , Ritmo Circadiano , Nível de Saúde , Humanos , Masculino
8.
J Trauma Nurs ; 28(2): 84-89, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33667202

RESUMO

BACKGROUND: Trauma patterns in adults are influenced by weather conditions, lunar phases, and time of year. The extent to which these factors contribute to pediatric trauma is unclear. OBJECTIVE: The present study aimed to review patients from a single Level I pediatric trauma center to determine the influence of weather, the lunar cycle, and time of year on trauma activity. METHODS: A retrospective review of trauma activations (n = 1,932) was conducted from 2015 to 2017. Injury type and general demographics were collected. Weather data and lunar cycles were derived from historical databases. RESULTS: Days with no precipitation increased the total number of injuries of all types compared with those with precipitation (p < .001). Blunt and penetrating injuries were more likely to occur during full moons, whereas burn injuries were significantly higher during new moons (p < .001). Blunt trauma was significantly higher in September than all other months, F(11, 1,921) = 4.25, p < .001, whereas January had a significantly higher number of burns than all other months (p < .001). CONCLUSIONS: Pediatric trauma trends associated with external factors such as weather, lunar cycles, and time of year can inform hospital staffing decisions in anticipation of likely injuries and help direct injury prevention efforts.


Assuntos
Tempo (Meteorologia) , Ferimentos e Lesões/epidemiologia , Ferimentos não Penetrantes , Criança , Humanos , Lua , Estudos Retrospectivos , Centros de Traumatologia , Enfermagem em Ortopedia e Traumatologia
10.
J Biol Rhythms ; 36(2): 160-168, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33446001

RESUMO

Evidence has accumulated over the years indicating that the moon influences some aspects of the reproductive activity in animals and humans. However, little is known about the influence of the lunar cycle on the reproductive performance of cows under tropical conditions, where the environment strongly affects reproduction. This retrospective study was conducted with the aim of assessing the influence of the lunar cycle on some reproductive traits of tropical crossbred cows managed in a pasture-based system. Data from 5869 reproductive records from two commercial farms localized in the Maracaibo Lake Basin of Zulia State, Venezuela, were analyzed. Variables studied were first service conception rate, calving frequency, first postpartum estrous frequency, and pregnancy frequency. In addition to the lunar cycle, the effects of farm, season, and predominant breed were also considered. Data were analyzed using logistic regression and general linear model from SAS. First service conception was affected by lunar phases and predominant breed, but not by farm or season. For frequencies of calving, first postpartum estrus, and pregnancy, there was no main effect of farm, season, and predominant breed, whereas the effect of lunar phases was highly significant. First service conception was significantly greater in waning than in crescent phase of the lunar cycle. Frequencies of calving, first estrus, and pregnancy were highly correlated and showed greater figures around full moon and new moon. In conclusion, lunar cycle influenced first service conception, attaining greater values in the waning phase of the moon cycle. Frequencies of calving, first postpartum estrus, and pregnancy in crossbred cows showed a clear bimodal rhythm, whose greatest values coincided with new moon and full moon.


Assuntos
Cruzamento , Bovinos/fisiologia , Ritmo Infradiano , Lua , Reprodução/fisiologia , Clima Tropical , Animais , Estro , Feminino , Masculino , Gravidez , Estudos Retrospectivos
11.
Chronobiol Int ; 38(3): 360-366, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33430668

RESUMO

The lunar synodic cycle is often believed to be associated with psychiatric emergencies and exacerbation in various countries, including India. However, the scientific literature regarding this matter is inconclusive. We aimed to evaluate the relationship between lunar cycle phase and admission rates plus occurrence of sentinel events in the psychiatric ward of a tertiary care general hospital in India. All admissions and transfer-ins (N = 780) to the Department of Psychiatry between August 1st, 2016 and July 31st, 2017 were evaluated from hospital records by a blinded author to obtain sentinel events, like requirement of physical restraint (PR) and chemical restraint (CR), occurring on full moon days (FM), new moon days (NM), and control days (CD). Statistical analysis was done by comparison of proportions. Significant positive differences were found when CR applied exclusively [p = .0008] on FM and NM days, and its frequency [p < .0001] in comparison to CD. Frequencies of parenteral [p = .0001] and per oral [p = .0064] modes of CR applied on FM and NM days showed significant positive results when compared with CD. Use of all restraints (PR plus CR) [p = .0017] and their frequencies [p < .0001] on FM and NM days were also positively significant. Sentinel events, such as use of restraints, especially chemical ones, in psychiatry in-patients are significantly more common during full moon and new moon phases.


Assuntos
Ritmo Circadiano , Lua , Hospitalização , Humanos , Índia
12.
Mil Med ; 186(Suppl 1): 281-287, 2021 01 25.
Artigo em Inglês | MEDLINE | ID: mdl-33499491

RESUMO

INTRODUCTION: The U.S. Space Force was stood up on December 20, 2019 as an independent branch under the Air Force consisting of about 16,000 active duty and civilian personnel focused singularly on space. In addition to the Space Force, the plans by NASA and private industry for exploration-class long-duration missions to the moon, near-earth asteroids, and Mars makes semi-independent medical capability in space a priority. Current practice for space-based medicine is limited and relies on a "life-raft" scenario for emergencies. Discussions by working groups on military space-based medicine include placing a Role III equivalent facility in a lunar surface station. Surgical capability is a key requirement for that facility. MATERIALS AND METHODS: To prepare for the eventuality of surgery in space, it is necessary to develop low-mass, low power, mini-surgical robots, which could serve as a celestial replacement for existing terrestrial robots. The current study focused on developing semi-autonomous capability in surgical robotics, specifically related to task automation. Two categories for end-effector tissue interaction were developed: Visual feedback from the robot to detect tissue contact, and motor current waveform measurements to detect contact force. RESULTS: Using a pixel-to-pixel deep neural network to train, we were able to achieve an accuracy of nearly 90% for contact/no-contact detection. Large torques were predicted well by a trained long short-term memory recursive network, but the technique did not predict small torques well. CONCLUSION: Surgical capability on long-duration missions will require human/machine teaming with semi-autonomous surgical robots. Our existing small, lightweight, low-power miniature robots perform multiple essential tasks in one design including hemostasis, fluid management, suturing for traumatic wounds, and are fully insertable for internal surgical procedures. To prepare for the inevitable eventuality of an emergency surgery in space, it is essential that automated surgical robot capabilities be developed.


Assuntos
Medicina Aeroespacial , Robótica , Humanos , Lua
14.
Proc Biol Sci ; 288(1942): 20202609, 2021 01 13.
Artigo em Inglês | MEDLINE | ID: mdl-33434460

RESUMO

Growth and survival of larval fishes is highly variable and unpredictable. Our limited understanding of this variation constrains our ability to forecast population dynamics and effectively manage fisheries. Here we show that daily growth rates of a coral reef fish (the sixbar wrasse, Thalassoma hardwicke) are strongly lunar-periodic and predicted by the timing of nocturnal brightness: growth was maximized when the first half of the night was dark and the second half of the night was bright. Cloud cover that obscured moonlight facilitated a 'natural experiment', and confirmed the effect of moonlight on growth. We suggest that lunar-periodic growth may be attributable to light-mediated suppression of diel vertical migrations of predators and prey. Accounting for such effects will improve our capacity to predict the future dynamics of marine populations, especially in response to climate-driven changes in nocturnal cloud cover and intensification of artificial light, which could lead to population declines by reducing larval survival and growth.


Assuntos
Recifes de Corais , Peixes , Animais , Pesqueiros , Larva , Lua
16.
Knee Surg Sports Traumatol Arthrosc ; 29(4): 1114-1119, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32556432

RESUMO

PURPOSE: Bucket handle tears of the meniscus are common and can lead to locking, extension deficit and functional impairment. The diagnosis is determined by a combination of physical examination and imaging, but in some cases the diagnosis may be challenging since specific clinical tests are lacking. The aim of the present study was to assess the value of a new clinical test, the elective pain at the anterior aspect of the joint line (defined as the "Rising Moon sign") in the diagnosis of bucket handle tears of the medial meniscus. METHODS: Forty patients treated for a bucket handle of the medial meniscus were enrolled as the study group and were compared to a matched group of 40 patients with a posterior horn tear of the medial meniscus and 50 healthy subjects. The following aspects were investigated in the groups: body mass index, extension deficit, pain at the posterior aspect of the joint line (PPJL), at the middle joint line (PMJL), at the anterior join line (PAJL) and at combined hyperflexion of the knee and external rotation of the foot (PHE). Pain at the anterior joint line (PAJL) was defined as the Rising Moon sign. RESULTS: In the bucket handle group the average flexion contracture was 12° (0-30°). The average PPJL was one (0-2), the average PMJL was 1.6 (0-3), PAJL was 2.5 (1-3) and PHE was 1.6 (1-2). In the posterior horn tear group the average flexion contracture was 0.9° (- 10 to 5°). The average PPJL was 2.2 (1-3), the average PMJL was 1.4 (0-3), PAJL was 0.6 (0-2) and PHE was 2.5 (1-3). The rising moon showed 95% sensitivity and 98% specificity in the diagnosis of bucket handle tears. In addition it showed a positive predictive value of 97.4% and negative predictive value of 96%. Finally it also demonstrated high inter-observer reliability (0.905). CONCLUSIONS: The "Rising Moon" sign has shown to be highly predictive for bucket handle tears of the medial meniscus with very high specificity and sensitivity. In addition it is easy to perform with very high inter-observer reliability. LEVEL OF EVIDENCE: Level IV.


Assuntos
Meniscos Tibiais/patologia , Lesões do Menisco Tibial/diagnóstico por imagem , Adulto , Artralgia/epidemiologia , Artroscopia/métodos , Feminino , Humanos , Traumatismos do Joelho/diagnóstico por imagem , Traumatismos do Joelho/cirurgia , Articulação do Joelho/patologia , Articulação do Joelho/cirurgia , Imageamento por Ressonância Magnética/métodos , Masculino , Meniscos Tibiais/diagnóstico por imagem , Meniscos Tibiais/cirurgia , Pessoa de Meia-Idade , Lua , Exame Físico , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Ruptura/diagnóstico por imagem , Ruptura/cirurgia , Sensibilidade e Especificidade , Lesões do Menisco Tibial/cirurgia , Adulto Jovem
17.
Chronobiol Int ; 38(2): 270-277, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33307847

RESUMO

The purpose of this study was to investigate the influence of lunar phases on fasting plasma glucose, heart rate, and blood pressure in type 2 diabetic patients. The present cross-sectional study was carried out during four phases, i.e., full moon (FM), first quarter (FQ), new moon (NM), and third quarter (TQ), of the lunar month. The study was conducted on 42 randomly selected patients (22 males and 20 females) from the Diabetes Clinic of Calcutta Medical College. Fasting plasma glucose (FPG) of each subject was determined and heart rate (HR) and blood pressure (BP) were measured at rest and during static exercise conditions, i.e., performance of a standard handgrip dynamometer test. The FPG level during the NM and FM was significantly higher (p < .001) than during the TQ and FQ for both males and females, respectively. The mean HR during static exercise during the NM and FM for both males and females was significantly higher than that during the FQ (p < .05) and TQ (p < .01). It appears from the present study that lunar phases may affect fasting plasma glucose level and cardiovascular functions of aged type 2 diabetic patients both at rest and during exercise.


Assuntos
Diabetes Mellitus Tipo 2 , Lua , Idoso , Glicemia , Pressão Sanguínea , Ritmo Circadiano , Estudos Transversais , Jejum , Feminino , Força da Mão , Frequência Cardíaca , Humanos , Índia , Masculino
18.
Philos Trans A Math Phys Eng Sci ; 379(2188): 20190568, 2021 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-33222635

RESUMO

There is strong interest in lunar exploration from governmental space agencies, private companies and the public. NASA is about to send humans to the lunar surface again within the next few years, and ESA has proposed the concept of the Moon Village, with the goal of a sustainable human presence and activity on the lunar surface. Although construction of the infrastructure for this permanent human settlement is envisaged for the end of this decade by many, there is no definite mission plan yet. While this may be unsatisfactory for the impatient, this fact actually carries great potential: this is the optimal time to develop a forward-looking science input and influence mission planning. Based on data from recent missions (SMART-1, Kaguya, Chang'E, Chandrayaan-1 and LRO) as well as simulation campaigns (e.g. ILEWG EuroMoonMars), we provide initial input on how astronomy could be incorporated into a future Moon Village, and how the presence of humans (and robots) on the Moon could help deploy and maintain astronomical hardware. This article is part of a discussion meeting issue 'Astronomy from the Moon: the next decades'.


Assuntos
Astronomia/instrumentação , Meio Ambiente Extraterreno , Lua , Voo Espacial/instrumentação , Ecossistema , Humanos , Robótica/instrumentação , Simulação de Ambiente Espacial
19.
Philos Trans A Math Phys Eng Sci ; 379(2188): 20200142, 2021 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-33222637

RESUMO

We describe a polar Moon base habitat using direct solar energy for construction, food production and atmospheric revitalization. With a growing area as large as 2000 m2, it could provide for 40 or more people. The habitat is built like the ancient Roman Pantheon, a stone structure with a top circular oculus, bringing in focused sunlight that is spread out to crops below. The conical, corbelled structure is built from cast regolith blocks, held in compression despite the large internal atmospheric pressure by a regolith overlayer 20-30 m thick. It is sealed on the inside against leaks with thin plastic. A solar mirror concentrator used initially to cast the building blocks is later used to illuminate the habitat through a small pressure window at the oculus. Three years of robotic preparation of the building blocks does not seem excessive for a habitat which can be expected to last for millennia, as has the Treasury of Atreus made by similar dry-stone construction. One goal of returning to the Moon is to demonstrate the practicality of long-term human habitation off the Earth. The off-axis, paraboloidal reflecting mirror is rotated about the vertical polar axis in order to direct horizontal sunlight downward to a focus. In this way, the heavy materials needed from Earth to build and power the habitat are largely limited to the solar concentrator and regolith moving and moulding equipment. By illuminating with a reflector rather than with electricity, the solar collection area is 20 times smaller than would be needed for PV cells. This article is part of a discussion meeting issue 'Astronomy from the Moon: the next decades'.


Assuntos
Meio Ambiente Extraterreno , Lua , Luz Solar , Materiais de Construção , Produtos Agrícolas/crescimento & desenvolvimento , Ecossistema , Arquitetura de Instituições de Saúde/instrumentação , Fenômenos Geológicos , Humanos , Robótica , Voo Espacial/instrumentação
20.
Philos Trans A Math Phys Eng Sci ; 379(2188): 20190577, 2021 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-33222648

RESUMO

LOUPE, the Lunar Observatory for Unresolved Polarimetry of the Earth, is a small, robust spectro-polarimeter for observing the Earth as an exoplanet. Detecting Earth-like planets in stellar habitable zones is one of the key challenges of modern exoplanetary science. Characterizing such planets and searching for traces of life requires the direct detection of their signals. LOUPE provides unique spectral flux and polarization data of sunlight reflected by Earth, the only planet known to harbour life. These data will be used to test numerical codes to predict signals of Earth-like exoplanets, to test algorithms that retrieve planet properties, and to fine-tune the design and observational strategies of future space observatories. From the Moon, LOUPE will continuously see the entire Earth, enabling it to monitor the signal changes due to the planet's daily rotation, weather patterns and seasons, across all phase angles. Here, we present both the science case and the technology behind LOUPE's instrumental and mission design. This article is part of a discussion meeting issue 'Astronomy from the Moon: the next decades'.


Assuntos
Astronomia/instrumentação , Planeta Terra , Exobiologia/instrumentação , Lua , Planetas , Simulação por Computador , Desenho de Equipamento , Evolução Planetária , Meio Ambiente Extraterreno , Humanos , Cristais Líquidos , Dispositivos Ópticos , Tecnologia de Sensoriamento Remoto/instrumentação , Análise Espectral/instrumentação
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...