Through the citizen science project, called Galaxy Zoo (part of the Zooniverse platform), volunteers can help astronomers ...

Elliptical galaxies are some of the oldest types of galaxies in the universe. They formed relatively quickly after the Big ...

The word itself comes from galaktikós kyklos, or “milky circle,” the ancient Greek term for the Milky Way, our home galaxy.

Astronomers today have been unable to tally up the total matter produced during the Big Bang 13.6 billion years ago. […] ...

Researchers suggest the universe's background radiation has been overestimated, potentially challenging the standard model of ...

Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

Astronomers have long sought to understand where half of the ordinary matter in the Universe is hiding. Half of the 15% of ...

Scientists have found evidence for a cosmic collision in the Perseus cluster, a group of thousands of galaxies not far from ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our noses all this time. Models of how the universe has evolved since the Big ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

The galaxy images used—all luminous ... the effect of dark energy on the expansion of the universe. Measurements of the cosmic microwave background (CMB) around these galaxies were made by ...

The "afterglow" of the universe is an important piece of evidence for the Big Bang. This background radiation also provides ...