Galaxies are often surrounded by a halo of hydrogen gas. Over time a galaxy can lose this halo, which streams off into the intergalactic medium. As a result, there can be clouds of hydrogen among the clusters of galaxies ...
Astronomy
Jan 13, 2023
0
35
Astronomers have discovered more than 200 distant variable stars known as RR Lyrae stars in the Milky Way's stellar halo. The most distant of these stars is more than a million light years from Earth, almost half the distance ...
Astronomy
Jan 9, 2023
3
710
A research team using new methods to analyze data from NASA's Curiosity rover and its neutron spectrometer Dynamic Albedo of Neutrons, or DAN, on Mars was able to independently verify that fracture halos contained water-rich ...
Planetary Sciences
Jan 4, 2023
4
3152
As different as they may seem, black holes and Las Vegas have one thing in common: What happens there stays there—much to the frustration of astrophysicists trying to understand how, when and why black holes form and grow.
Astronomy
Dec 15, 2022
6
358
When NASA's Lunar Flashlight launches no earlier than Nov. 30, the tiny satellite will begin a three-month journey, with mission navigators guiding the spacecraft far past the moon. It will then be slowly pulled back by gravity ...
Space Exploration
Nov 28, 2022
0
8
A new study has revealed the true shape of the diffuse cloud of stars surrounding the disk of our galaxy. For decades, astronomers have thought that this cloud of stars—called the stellar halo—was largely spherical, like ...
Astronomy
Nov 18, 2022
1
817
Coral reef halos, also known as grazing halos or sand halos, are bands of bare, sandy seafloor that surround coral patch reefs. These features, clearly-visible from satellite imagery, may provide a window into reef health ...
Plants & Animals
Oct 24, 2022
0
80
Research work by renowned researchers is rated significantly better than work by lesser-known researchers, despite the same quality. This was the conclusion reached by a team of researchers led by Jürgen Huber from the Department ...
Social Sciences
Oct 10, 2022
0
54
Using various radio telescopes, an international team of astronomers has performed deep low-frequency radio observations of a merging galaxy cluster Abell 2256. The observational campaign delivered more insights into the ...
A study co-led by physicists at UC Riverside and UC Irvine has found that dark matter halos of ultra-diffuse galaxies are very odd, raising questions about physicists' understanding of galaxy formation and the structure of ...
Astronomy
Sep 12, 2022
1
250
