(Nuvens de Hidrogênio Ionizado da Grande Nuvem de Magalhães)
A imagem acima mostra uma visão fascinante do céu do hemisfério sul do planeta Terra, com a Grande Nuvem de Magalhães, ou LMC, sendo mostrada num belo mosaico obtido através de imagens feitas por um telescópio. Para criar esse mosaico foram usadas imagens obtidas com filtros de banda larga e estreita e o mosaico final se espalha por cerca de 5 graus, o equivalente 10 Luas Cheias. Os filtros de banda estreita são desenhados para transmitir somente a luz emitida pelos átomos de hidrogênio e oxigênio. Os átomos são ionizados pela luz energética das estrelas e emitem sua luz característica à medida que os elétrons são recapturados e os átomos são então transpostos para um estado de menor energia. Como resultado de todo esse processo, nessa imagem da LMC é possível ver muitas nuvens de gás ionizado ao redor de estrelas jovens e massivas. Esculpidas pelos fortes ventos estelares e pela radiação ultravioleta, as nuvens brilhantes, são dominadas pela emissão de hidrogênio, conhecido como regiões H II, de hidrogênio ionizado. Composta por muitas regiões H II sobrepostas, a Nebulosa da Tarântula é a grande região de formação de estrelas observada na parte esquerda da imagem. Considerada a maior galáxia satélite da Via Láctea, a LMC, tem cerca de 15 mil anos-luz de diâmetro e localiza-se a cerca de 160 mil anos-luz de distância da Terra, na direção da constelação de Dorado. #nasa#esa#roscosmos#astronomia#universo#galaxia🔭 #estrela🔭 #nebulosa🔭
I’m asking you all to help my friend out, her cousin was to be the 1st African American women to astronaut assigned to space station crew but they removed without any reason. Spread and try to get answers!! #nasa#jeanetteepps#justiceforjo#africanamerican
#relativity#einstein#nasa#timechange#cosmology Albert Einstein, in his theory of special relativity, determined that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels. As a result, he found that space and time were interwoven into a single continuum known as space-time. Events that occur at the same time for one observer could occur at different times for another.
Voting is open for Minted’s large scale art challenge and this is one of my favorite submissions, Plum Blossom Nebula. I think this would look awesome as a giant canvas in my navy blue dining room, where would you hang it? #mintedartist#minted#nasa#modernhomedecor#nebula
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The NASA/ESA Hubble Space Telescope has snapped the best ever image of the Antennae Galaxies. Hubble has released images of these stunning galaxies twice before, once using observations from its Wide Field and Planetary Camera 2 (WFPC2) in 1997, and again in 2006 from the Advanced Camera for Surveys (ACS). Each of Hubble’s images of the Antennae Galaxies has been better than the last, due to upgrades made during the famous servicing missions, the last of which took place in 2009.
The galaxies — also known as NGC 4038 and NGC 4039 — are locked in a deadly embrace. Once normal, sedate spiral galaxies like the Milky Way, the pair have spent the past few hundred million years sparring with one another. This clash is so violent that stars have been ripped from their host galaxies to form a streaming arc between the two. In wide-field images of the pair the reason for their name becomes clear — far-flung stars and streamers of gas stretch out into space, creating long tidal tails reminiscent of antennae.
This new image of the Antennae Galaxies shows obvious signs of chaos. Clouds of gas are seen in bright pink and red, surrounding the bright flashes of blue star-forming regions — some of which are partially obscured by dark patches of dust. The rate of star formation is so high that the Antennae Galaxies are said to be in a state of starburst, a period in which all of the gas within the galaxies is being used to form stars. This cannot last forever and neither can the separate galaxies; eventually the nuclei will coalesce, and the galaxies will begin their retirement together as one large elliptical galaxy.
This image uses visible and near-infrared observations from Hubble’s Wide Field Camera 3 (WFC3), along with some of the previously-released observations from Hubble’s Advanced Camera for Surveys (ACS).
Keep looking up and keep enjoying our beautiful universe!!🌌🌌🔭🔭😃😃
The Pelican Nebula from our most popular system, the FSQ-106 from @takahashiamerica paired with a QSI 683 wsg-8. This super sharp scope is great for those are looking to fit a lot of larger nebula in their view, while also retaining the sharpness when you go for a closer look. I definitely get why it's the most popular choice we offer!
Millions AND billions! This enormous galaxy cluster, seen by our Hubble Space Telescope (@NASAHubble), contains the mass of a staggering three million billion suns! Nicknamed “El Gordo” (“the Fat One” in Spanish), it is the largest, hottest and brightest X-ray galaxy ever discovered in the distant Universe.
Galaxy clusters are the largest objects in the Universe that are bound together by gravity. They form over billions of years as smaller groups of galaxies slowly come together. In 2012, observations showed that El Gordo is actually composed of two galaxy clusters colliding at millions of kilometers per hour.
The formation of galaxy clusters depends heavily on dark matter and dark energy; studying such clusters can therefore help shed light on these elusive phenomena. In 2014, Hubble found that most of El Gordo’s mass is concealed in the form of dark matter. Evidence suggests that El Gordo’s “normal” matter — largely composed of hot gas that is bright in the X-ray wavelength domain — is being torn from the dark matter in the collision. The hot gas is slowing down, while the dark matter is not.
Credit: ESA/Hubble & NASA, RELICS