Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

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

Astronomers have spotted the largest structure in the universe, a 10 billion year spanning structure that is a total mystery.

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

Astronomers have discovered a likely explanation for a fracture in a huge cosmic “bone” in the Milky Way. Using NASA’s ...

A star in a faraway galaxy is sending itself into a spiral of doom, repeatedly plunging through a disk of hot gas surrounding ...

A mysterious cluster of 60 stars may be just another Milky Way star cluster, or it may be one of the smallest galaxies ever ...

Using the National Radio Astronomy Observatory's Very Large Array, astronomers have revealed for the first time the huge flow ...

The most recent measurement of a nearby galaxy cluster is deepening a disagreement about how fast the universe is expanding — ...

Astronomers have caught a black hole far from the center of its home galaxy ripping a star to shreds — providing, for the ...

Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island have listened to the music of a nearby star, uncovering surprises that shake our understanding of how stars work. The study ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...