Detectors long used to look at the cosmos are now part of X-ray experiments here on Earth.
cosmology
New experiments will help astronomers uncover the sources that helped make the universe transparent.
Neutron stars have earned their share of superlatives since their discovery in 1967.
Theorists think dark matter was forged in the hot aftermath of the Big Bang.
Physicists are searching for gravitational waves all across the spectrum.
A new tool lets astronomers listen to the universe for the first time.
It’s the cornerstone of cosmology, but what is it all about?
How do scientists know what percentages of the universe are made up of dark matter and dark energy? Cosmologist Risa Wechsler of the Kavli Institute for Particle Astrophysics and Cosmology explains. Watch the 3-minute video.
On Aug. 31, the Dark Energy Survey (DES) officially began. Scientists on the survey team will systematically map one-eighth of the sky (5000 square degrees) in unprecedented detail. The start of the survey is the culmination of 10 years of planning, building and testing by scientists from 25 institutions in six countries.
Our galaxy, the Milky Way, is a large spiral galaxy surrounded by dozens of smaller satellite galaxies.