Hubble

Diamond Pinpricks: Gorgeous Shot Of Star Group That Once Baffled Astronomers

by Elizabeth Howell August 14, 2014

Want to stay on top of all the space news? Follow @universetoday on Twitter Is this group of stars belonging to one generation, or more? That’s one of the things that was puzzling astronomers for decades, particularly when they were trying to pin down the age of IC 4499 — the globular cluster you see […]

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Hubble Archive Reveals Possible Culprit for Enigmatic Supernova

by Shannon Hall August 6, 2014

More than two decades of Hubble observations have produced more than 25 terabytes of data. Thanks to the wealth of information stored in the Hubble data archive, astronomers can easily revisit old images in an effort to better understand new discoveries. Now, astronomers have used the archive to find the progenitor of a mysterious type […]

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James Webb Space Telescope’s Giant Sunshield Test Unit Unfurled First Time

by Ken Kremer July 26, 2014

GODDARD SPACE FLIGHT CENTER, MD – The huge Sunshield test unit for NASA’s James Webb Space Telescope (JWST) has been successfully unfurled for the first time in a key milestone ahead of the launch scheduled for October 2018. Engineers stacked and expanded the tennis-court sized Sunshield test unit last week inside the cleanroom at a […]

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Hubble Finds 3 (Relatively) Dry Exoplanets, Raising Questions About Water Outside The Solar System

by Elizabeth Howell July 24, 2014

Surprise! Three planets believed to be good candidates for having water vapor in their atmosphere actually have much lower quantities than expected. The planets (HD 189733b, HD 209458b, and WASP-12b) are “hot Jupiters” that are orbiting very close to their parent star, at a distance where it was expected the extreme temperatures would turn water […]

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‘Lopsided’ Ghostly Galactic Halo Has Some Starry Surprises

by Elizabeth Howell July 22, 2014

Centaurus A — that popular target for astrophotographers in the southern hemisphere — has a much wider halo than expected, astronomers revealed. Turns out the galaxy’s ghostly glow is about eight times the apparent width of the full moon in the sky. Examining this halo in more detail could reveal much about how galaxies come […]

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