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  Hey, Folks! " Hubble Focus  is a series of e-books that dive deeper into specific fields of astronomy that have been forever changed by Hubble’s explorations.  Hubble Focus: Galaxies through Space and Time  is the second book in the series, describing some of Hubble’s recent discoveries about galaxies — the homes of stars, nebulas and planets — from our own Milky Way to the most distant galaxies ever seen. These discoveries are helping us understand how galaxies evolve and how the universe itself has come to be the way it is today." Download:  https://www.nasa.gov/sites/default/files/atoms/files/hubblefocusgalaxies.pdf Picture: NASA #That'sAll

  Hey, Folks! Reproduzo texto publicado no site do INPE. Descoberta de Fosfina em Vênus explicada por especialista em Astrobiologia do INPE MCTI Por Carlos Wuensche do INPE 15 de Setembro de 2020   A detecção da molécula fosfina (PH3) na atmosfera de Vênus, anunciada no paper "Phosphine gas in the cloud decks of Venus" de Greaves et al. em https://www.nature.com/articles/s41550-020-1174-4, é um excelente campo de provas para a possível existência de atividade biológica na alta atmosfera de Vênus, nos chamados "cloud decks" ( camada de nuvens).  A fosfina é encontrada na Terra e sua origem é ligada à atividade biológica terráquea, que repõe a fosfina decomposta pela intensa atividade química na atmosfera terrestre (oxidante, que arranca os átomos de H). Ela é também encontrada em outros pontos do Sistema Solar, mas nos planetas gigantes, em que o tipo de atmosfera (redutora) permite sua sobrevivência em quantidades que permitem a detecção a partir da Terra.  A identi...

Hey, folks!  Segue abaixo a nota "Entenda o Teste de Termovácuo do Satélite Brasileiro Amazônia-1 do INPE", publicada no site do INPE e, posteriormente, no blog Brazilian Space. Conforme informado pelo Brazilian Space, o teste deve ter sido iniciado em 18/09/2020.  A seguir, apenas reproduzo a nota. Entenda o Teste de Termovácuo do Satélite Brasileiro Amazônia-1 do INPE que Inicia Amanhã Por INPE 17 de Setembro de 2020 Em 18 de setembro de 2020, sexta-feira, a partir das 10:00, terá início o teste de termovácuo do modelo de voo do satélite Amazônia 1. Durante o ensaio termovácuo, são simuladas através dos meios de testes as condições do ambiente espacial, em termos de temperatura e pressão & a carga térmica, em termos de radiação absorvida pelas superfícies do satélite, quando em órbita.  Para o satélite Amazônia-1, o LIT- Laboratório de Integração e Testes do INPE, utilizará sua maior câmara vácuo térmica, com entrada de 6 por 8 metros. Nela o ambiente espacial será ...

  Hey, folks! Over hundreds of asteroids whizz by Earth every month where most of them are benign and pose no threat whatsoever to our planet. But, that doesn’t mean that all asteroids are risk free, which is why Asteroid researchers and spacecraft engineers from the US (NASA), Europe (ESA) and other parts of the world meet in Rome in order to discuss the latest progress in asteroid deflection methods. The asteroid deflection method is a double-spacecraft mission, called AIDA or Asteroid Impact Deflection Assessment, aimed at deviating a close-Earth encounter of the binary asteroid 65803 Didymos (1996 GT) in October 2022, states ESA. Two independent spacecraft would be sent to Didymos including an asteroid impactor - NASA Double Asteroid Redirection Test (DART) alongside which an Italian CubeSat, LICIACube, will also be flying. LICIACube will analyse the impact of the asteroid and send the data to an on-ground team, reports Business Insider. A three-day AIDA workshop will also be c...

Hey, Folks! Do you have problems with the notion of zero? If so, I hope this video gets your appropriately excited for it. Enjoy it! #That'sAll

  Hey, Folks! " Possible sign of life on Venus stirs up heated debate “Something weird is happening” in the clouds of the planet next door—but some experts are raising doubts about the quality of the data. SOMETHING DEADLY MIGHT be wafting through the clouds shrouding Venus—a smelly, flammable gas called phosphine that annihilates life-forms reliant on oxygen for survival. Ironically, though, the scientists who today announced sightings of this noxious gas in the Venusian atmosphere say it could be tantalizing—if controversial—evidence of life on the planet next door. As far as we know, on rocky planets such as Venus and Earth, phosphine can only be made by life—whether human or microbe. Used as a chemical weapon during World War I, phosphine is still manufactured as an agricultural fumigant, is used in the semiconductor industry, and is a nasty byproduct of meth labs. But phosphine is also made naturally by some species of anaerobic bacteria—organisms that live in the oxygen-star...