In a $19.5 million NASA-funded mission, a team at George Mason University is heading a project to construct and launch a ...

MIT physicists propose that early dark energy, a mysterious force, might be the key to resolving the "Hubble tension" and the ...

A new image from the James Webb Space Telescope shows Arp 107, home to two merging galaxies, with two bright cores and a "bridge" of dust and gas forming a cosmic smiley face.

LTT 1445 Ac is roughly the size of Earth and about 22 light-years away in the constellation Eridanus. The planet orbits the ...

Astronomers will soon begin a search of 2,800 galaxies for signs of advanced alien civilizations using a radio telescope in ...

But a telescope reveals subtle structures within and outside the Milky Way that show how our own galaxy and others formed, explain their evolution through cosmic time, and even hint at their fate. A ...

The energetic streams are together 23 million light-years in length—roughly as long as 140 Milky Way galaxies lined end to end ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

The discovery of something this immense surprisingly early in the lifetime of the universe overturns what we thought we knew ...

Astronomers have discovered the largest pair of black hole jets, stretching 23 million light-years. That’s like lining up 140 Milky Way galaxies one after another!

Through your telescope eyepiece, the planet’s disk will appear as ... to observe the third-largest galaxy in our Local Group ...