A University of Kansas survey of a swath of the cosmos using the James Webb Space Telescope has revealed active galactic nuclei (AGN)—supermassive black holes that are rapidly increasing in size—are rarer than many astronomers ...
Astronomy
Aug 23, 2023
57
307
An Australian astronomer has solved a century-old mystery regarding how galaxies evolve from one type to another. The same study shows that the Milky Way, the galaxy we live in, was not always a spiral.
Astronomy
Jul 25, 2023
0
110
The first images from the largest program in the James Webb Space Telescope's first year show many types of galaxies, including dazzling examples of spiral galaxies, gravitational lensing, and evidence of galaxy mergers. ...
Astronomy
Mar 9, 2023
42
194
It is a popular notion that aside from large celestial objects like planets, stars and asteroids, outer space is empty. In fact, galaxies are filled with something called the interstellar medium (ISM)—that is, the gas and ...
Astronomy
Feb 16, 2023
0
158
Researchers used the James Webb Space Telescope to identify the precise location of a powerful energy source hidden by cosmic dust in the luminous merging galaxy IIZw096.
Astronomy
Feb 6, 2023
0
249
Spiral galaxies represent one of the most spectacular features in our universe. Among them, spiral galaxies in the distant universe contain significant information about their origin and evolution. However, we have had a ...
Astronomy
Dec 13, 2022
5
267
While astronomers have seen the debris from scores of exploded stars in the Milky Way and nearby galaxies, it is often difficult to determine the timeline of the star's demise. By studying the spectacular remains of a supernova ...
Astronomy
Sep 12, 2022
0
386
An international team of astronomers have used ground-based telescopes, including the European Southern Observatory's Very Large Telescope (ESO's VLT), to track Neptune's atmospheric temperatures over a 17-year period. They ...
Planetary Sciences
Apr 11, 2022
0
522
In the first few billion years after the Big Bang, the universe contained far more so-called starburst galaxies than models predict. As many as 60 to 90% of the stars in the early universe appear to have been produced by ...
Astronomy
Apr 4, 2022
1
142
White dwarfs are among the most stable of stars. Left on their own, these stars that have exhausted most of their nuclear fuel—while still typically as massive as the Sun—and shrunk to a relatively small size can last ...
Astronomy
Oct 12, 2021
0
59
