It is located about 25 million light-years from Earth in the constellation Ursa Major.

Like tiny photobombers, cosmic anomalies resembling small, bright red points show up in almost every snapshot taken by the ...

The first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of ...

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump ...

They discovered that the host galaxy is incredibly massive — weighing in at over 40 billion times the mass of our Sun — and ...

Astronomers may have found an exciting new clue about dark energy—the mysterious force driving the universe’s accelerating expansion. They discovered an extraordinarily bright supernova from more than ...

Astronomers may be getting closer to understanding one of the biggest mysteries in cosmology: dark energy, the unknown force believed to be driving ...

Using a novel technique that examines the motion of two nearby galaxy groups within their surrounding cosmic flow, an ...

The local universe may be expanding more slowly than previously thought, scientists have found. The discovery, made in two separate pieces of research, could relieve one of the most troubling ...

The research could shed light on how black holes vomit out matter and how this influences their home galaxies.

Astronomers have identified a strange new kind of exoplanet that challenges how scientists classify worlds beyond our Solar System. The planet, L 98-59 d, appears to contain a vast ocean of molten ...