A sheet of dark matter lying beyond the boundary of the Local Group is responsible for this.

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

This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

CAPE CANAVERAL, Fla. — It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two spiral ...

(CNN) — A collision between our Milky Way galaxy and its largest neighbor, the Andromeda galaxy, predicted to occur in about 4.5 billion years, has been anticipated by astronomers since 1912. But new ...

Astronomers at Texas A&M University have discovered a rare, tightly packed collision of galaxies in the early universe, suggesting that galaxies were interacting and shaping their surroundings far ...

Using observations from the James Webb Space Telescope (JWST), the researchers identified an ongoing merger event of at least ...

It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two spiral galaxies colliding is ...

The suburbia of the Milky Way does not form a ball of matter with the center at its center. Rather, the mass around it is arranged in a wide, flattened form, which alters the sense of gravity back ...

Discover seven unusual galaxies defying scientific predictions, from impossibly bright early universe objects to astrophysics ...

Some galaxies in the early universe were absolute powerhouses, churning out stars at rates that would dwarf the Milky Way's ...