A look at Edwin Hubble’s role in confirming that the Andromeda Galaxy lies beyond the Milky Way, helping expand our ...

Will the Milky Way and Andromeda galaxies collide in several billion years? The odds have changed with a new study using ...

For a technological object, such a beam could deflect the solar wind, and the dust veil is also just sufficient to block ...

A nearby galaxy is behaving strangely—and now scientists know why. The Small Magellanic Cloud’s stars move in chaotic ...

The local universe may be expanding more slowly than previously thought, scientists have found. The discovery, made in two ...

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 Nancy Grace Roman Space Telescope will be deployed to the second Sun-Earth Lagrange point (L2), some one million miles (1 ...

It’s “common knowledge”—and the scare quotes should be a warning—that the sun is an average star.

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

Gamma-ray bursts are the universe's most violent flashes — capable of releasing more energy in a fraction of a second than ...