Astronomers have unveiled a new catalog of massive galaxy clusters, revealing new insight on the evolution of the universe ...

The dark object has a mass a million times greater than our sun's is located 10 billion light-years away and has no stars.

Scientists using a global array of radio telescopes have detected the universe’s lowest-mass dark object by observing how it ...

Astronomers have detected a mysterious dark object in the distant universe — and its size has them fascinated.

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

If such ‘twilight’ asteroids approach Earth, "they could pose serious impact hazards," warned the astronomer behind the ...

The Antonov 225, once the largest aircraft in the world, the heaviest aircraft ever built and with the largest wingspan, now ...

Astronomers have detected one of the darkest objects ever seen at a record cosmic distance—only with the assistance of ...

ALMA captures surprising activity in comet C/2014 UN271, Bernardinelli-Bernstein comet, the largest ever detected.

The James Webb Space Telescope's latest image shows eight spectacular examples of gravitational lensing, a phenomenon that ...

The interstellar comet 3I/ATLAS may be out of view of Earth, but orbiters on Mars were able to recently get a look at it.

The concept of two black holes orbiting one another has been theorized for many years, but recent satellite photography may ...