Astronomers at the Complutense University of Madrid first spotted this intriguing event using a powerful telescope in ...

Quasars Tsunamis: Using NASA’s Hubble Space Telescope, astronomers have discovered the most energetic outflows ever witnessed ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

NASA's Roman Space Telescope has received its Optical Telescope Assembly, paving the way for its mission to explore the ...

One such telescope is the Chandra X-ray Observatory. Well, for most of you, the instant question upon hearing its name is: ...

A compound lens forged by two galaxies is helping astronomers get a bead on the Hubble Constant and dark energy.

New observations suggest that the universe’s oldest galaxies are brighter than expected. Here's why this may be a big deal.

Some minerals in lava could suggest water is nearby.

NASA hopes the Parker Solar Probe will help solve the most perplexing mysteries of the sun. Astrophysicist Nour Rawafi ...

Saturn will undergo a drastic change in the coming months, at least as the planet is seen from Earth. Here's what's going to ...

The Arecibo Message as it appears when its 1,679 bits are properly aligned on a grid (left), an annotated illustration ...

From lunar missions to Mars settlements, SpaceX is revolutionizing space travel. But has Musk truly outpaced the competition?