When most of us picture the shape of the Milky Way, the galaxy that contains our own sun and hundreds of billions of other stars, we think of a central mass surrounded by a flat disc of stars that spiral around it. However, ...
Astronomy
Feb 5, 2021
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3241
A new theory for how rocky planets form could explain the origin of so-called "super-Earths"—a class of exoplanets a few times more massive than Earth that are the most abundant type of planet in the galaxy.
Planetary Sciences
Jan 12, 2023
1
592
On Sept. 9, 2018, astronomers spotted a flash from a galaxy 860 million light years away. The source was a supermassive black hole about 50 million times the mass of the sun. Normally quiet, the gravitational giant suddenly ...
Astronomy
May 17, 2021
3
977
The discovery of a so-called monster black hole that has about 12 times the mass of the sun is detailed in a new Astrophysical Journalresearch submission, whose lead author is Dr. Sukanya Chakrabarti, a physics professor ...
Astronomy
Oct 19, 2022
0
1543
By taking advantage of a natural lens in space, astronomers have captured an unprecedented look at X-rays from a black hole system in the early universe.
Astronomy
Aug 31, 2021
3
337
The earliest galaxies were cosmic fireballs converting gas into stars at breathtaking speeds across their full extent, reports a UCLA-led study to be published in a special issue of The Astrophysical Journal.
Astronomy
Nov 18, 2022
0
526
All through history, humans have created and shared stories that ponder the creation of stars—what they are and how the first stars came to be. Now, with new results from the Hydrogen Epoch of Reionization Array (HERA), ...
Astronomy
Feb 11, 2022
4
376
The cosmic optical background (COB) is the visible light emitted by all sources outside of the Milky Way. This faint glow of light, which can only be observed using very precise and sophisticated telescopes, could help astrophysics ...
An international team of astronomers led by Pierluigi Rinaldi of the University of Groningen has detected for the first time H-alpha emission in individual galaxies during the so-called Epoch of Reionization, or cosmic dawn. ...
Astronomy
Jun 13, 2023
3
510
NASA's Nancy Grace Roman Space Telescope, now under construction, will test new technologies for space-based planet hunting. The mission aims to photograph worlds and dusty disks around nearby stars with detail up to a thousand ...
Astronomy
Feb 24, 2022
0
192
