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Hubble est de retour et voici ses nouvelles images du cosmos
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Hubble, enfin de retour ?
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NASA : de nouvelles révélations confirmant une vie microbienne sur la lune jovienne Europe ?
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The Hubble Space Telescope was launched on April 24, 1990, and for more than three decades it has provided humanity with breathtaking views of the cosmos. Not to be outdone on its 31st birthday, NASA has released a spectacular new image of a star ejecting a bubble of glowing gases.
The astronomers at the Space Telescope Institute aimed the powerful observatory at AG Carinae, one of the brightest stars in the Milky Way. The star is a luminous blue variable and is very unstable. It experiences wild pulsations, occasional large outbursts, and the occasional massive eruption. This activity has created a large nebula of ejected material extending to about 5 light-years across.
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For UVA Astronomers, New Space Telescope Could Be a ‘Game-Changer’
When the James Webb Space Telescope launches in October, it will be the world’s premier space science observatory. Its combination of high-resolution and infrared-detecting instruments is expected to provide astronomers with a wealth of detailed data – not only on individual stars in the local universe, but also an unprecedented level of detail of what’s happening at the cores of other galaxies.
Among those eagerly awaiting the Webb telescope’s launch are a pair of University of Virginia astronomers leading and working on two of the 13 Early Release Science projects selected by NASA and its partners, the European Space Agency and the Canadian Space Agency, to test its capabilities. Data from Aaron Evans’s and Nitya Kallivayalil’s projects, as well as from the other 11 Early Release Science programs, will be made available to other astronomers immediately, and archived for future research.