Dark Matter in a Galaxy
(PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%.
(PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%.
Astronomy
Oct 30, 2009
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(PhysOrg.com) -- The first of three images of ESO's GigaGalaxy Zoom project — a new magnificent 800-million-pixel panorama of the entire sky as seen from ESO's observing sites in Chile — has just been released online. ...
Astronomy
Sep 14, 2009
2
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(PhysOrg.com) -- A huge galaxy neighbouring our own Milky Way appears to have expanded by "digesting" smaller galaxies nearby, a new study has shown.
Astronomy
Sep 2, 2009
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Sometime between now and September, a massive explosion 3,000 light years from Earth will flare up in the night sky, giving amateur astronomers a once-in-a-lifetime chance to witness this space oddity.
Astronomy
Apr 6, 2024
2
1104
The dust of comets fills the space between the planets, collectively called the zodiacal cloud. Still, severe breakdown has reduced that dust in size so much that it now scatters sunlight efficiently, causing the faint glow ...
Astronomy
Mar 21, 2024
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147
A fully automated process, including a brand-new artificial intelligence (AI) tool, has successfully detected, identified and classified its first supernova.
Astronomy
Oct 13, 2023
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Observations of the BlueWalker 3 prototype satellite show it is one of the brightest objects in the night sky, outshining all but the brightest stars.
Astronomy
Oct 2, 2023
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91
A large international team of astronomers and astrophysicists has discovered something new in the night sky—a type of explosion that is much brighter than most supernovae and is called luminous fast cooler (LFC). In their ...
The annual Perseid meteor shower reaches its peak this weekend, sending bright trails of light streaking across the night sky.
Space Exploration
Aug 9, 2023
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549
An asteroid discovery algorithm—designed to uncover near-Earth asteroids for the Vera C. Rubin Observatory's upcoming 10-year survey of the night sky—has identified its first "potentially hazardous" asteroid, a term for ...
Astronomy
Jul 31, 2023
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