Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...

A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding ...

Discover why astronomy and cosmology are the universe's mapmakers. Discover how scientists trace galaxies, the cosmic web, and the large-scale architecture of our entire existence in three dimensions ...

A telescope in Chile has captured a stunning new picture of a grand and graceful cosmic butterfly. The National Science Foundation's NoirLab released the picture on Wednesday. The glowing "wings" ...

CAPE CANAVERAL, Fla. — A telescope in Chile has captured a stunning new picture of a grand and graceful cosmic butterfly. The National Science Foundation’s NoirLab released the picture Wednesday.

ABSTRACT: Because of the interconnection between the cosmic vacuum with non-zero energy density and moving particles, any dynamic system that does not include the cosmic vacuum can not be a closed one ...

The popular consensus among scientists is that the universe will continue expanding until the bitter end. A team of researchers is now pumping the brakes on that idea. A new theory promises to ...

An anomaly in the temperature of the universe has long stumped physicists, and a new analysis of data from several radio telescopes has only deepened the mystery of what is causing it. This weird ...

George Smoot, who shared the Nobel Prize for Physics in 2006 for his studies of the cosmic microwave background (CMB), died on 18 September at the age of 80. Smoot’s work on the blackbody form and ...

The NASA/ESA Hubble Space Telescope has imaged Abell 611, a galaxy cluster located about 3.2 billion light years from Earth. Gravitational lensing seen in the image makes it a good target to study ...

NASA has unveiled a breathtaking new image showing what appears to be a massive “cosmic hand” stretching across 150 light-years of space, created by one of the galaxy’s most powerful electromagnetic ...