Dark matter is one of science's greatest mysteries. It doesn't absorb, reflect or emit light, so we can't see it. But its presence is implied by the gravitational effects it appears to have on galaxies.
Astronomy
Mar 19, 2024
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1222
For the past year and a half, the James Webb Space Telescope has delivered astonishing images of distant galaxies formed not long after the Big Bang, giving scientists their first glimpses of the infant universe. Now, a group ...
Astronomy
Jan 31, 2024
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79
Nube is an almost invisible dwarf galaxy discovered by an international research team led by the Instituto de Astrofísica de Canarias (IAC) in collaboration with the University of La Laguna (ULL) and other institutions.
Astronomy
Jan 9, 2024
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5489
If you look at massive galaxies teeming with stars, you might be forgiven for thinking they are star factories, churning out brilliant balls of gas. But actually, less evolved dwarf galaxies have bigger regions of star factories, ...
Astronomy
Nov 21, 2023
0
97
Commonly thought to be long-lived satellites of our galaxy, a new study now finds indications that most dwarf galaxies might, in fact, be destroyed soon after their entry into the Galactic halo.
Astronomy
Nov 21, 2023
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392
Astronomers using the Gemini North telescope, one-half of the International Gemini Observatory operated by NSF's NOIRLab, have captured the eroding remains of more than 100 dwarf galaxies as they transition into ultra-compact ...
Astronomy
Nov 8, 2023
2
70
An international team of astronomers, astrophysicists and cosmologists, has found evidence of galaxy M64's outer disk originating from a smaller, nearby, dwarf galaxy. The team has written a paper describing their findings ...
Astronomers have discovered the first evidence for giant black holes in dwarf galaxies on a collision course. This result from NASA's Chandra X-ray Observatory has important ramifications for understanding how the first wave ...
Astronomy
Feb 22, 2023
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473
In the vast and diverse universe, the initial mass distribution at the birth of a new population of stars determines the fate of galaxies. This relationship is described by the initial mass function (IMF). For more than half ...
Astronomy
Jan 18, 2023
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63
A Dartmouth professor's images of the explosive aftermath from the collision of two dying stars could help scientists better understand this rare type of astronomical event—and may finally confirm the identity of a brilliant ...
Astronomy
Jan 13, 2023
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