nasa
Jul 11
6.8M
8.57%
đ SNEAK PEEK: The deepest, sharpest infrared image of the universe ever.âŁ
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@POTUS previewed the very first image released from the James Webb Space Telescope, the world's most powerful space telescope. Capturing this was all in a dayâs work. (Literally! Webb captured this image in less than a day, while similar images from Hubble can take weeks.) âŁ
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If you held a grain of sand to the sky at armâs length, that speck is the size of Webbâs view here. Imagine â galaxies galore within a grain! Why do some galaxies appear bent? The combined mass of this galaxy cluster acts as a âgravitational lens,â bending the light rays from more distant galaxies behind it, magnifying them. âŁ
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This isnât the farthest back weâve seen. Non-infrared missions like COBE & WMAP saw the universe closer to the Big Bang (about 380,000 years after), when there was microwave background radiation, but no stars or galaxies. Webb sees a few 100 million years after. âŁ
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View & download Webbâs new image at our link in bio. Tune in July 12 at 10:30 a.m. EDT (14:30 UTC) for the rest of Webbâs First Images!âŁ
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Webb is a collaboration between NASA, the @EuropeanSpaceAgency & the @CanadianSpaceAgency. The @Space_Telescopes Science Institute is Webb's science & mission operations center.âŁ
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Credits: NASA, ESA, CSA & STScI
nasa
Jul 11
6.8M
8.57%
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