The universe

A pair of small experimental satellites have begun tests related to future lunar communication and navigation services for China's moon ambitions.

The U.S. could lose its decades-old leadership in space exploration and technology to China.

'Devil Comet' 12P/Pons-Brooks is hurtling toward the sun where it will make its closest approach on April 21. We take a look at whether this celestial vagabond will survive.

Jupiter's moon Io is the solar system's most volcanic body thanks to a gravitational tug of war that rages below its surface. But now scientists know the violent moon has always been this way.

The Ingenuity Mars helicopter team met one last time on Tuesday (April 16) to oversee a transmission from the little rotorcraft.

"We may be seeing Mimas at a particularly interesting time."

Starting in late 2025, the Vera C. Rubin observatory will image the outskirts of our galaxy in search of dark matter clues.

Astronomers have discovered the most massive stellar-born black hole ever seen in the Milky Way, and it lies relatively close to Earth.

A study suggests the ice giants Uranus and Neptune aren't quite as watery as previously thought. They may also contain huge amounts of frozen methane, potentially solving the puzzle of how they formed.