Harvesting solar energy in orbit and beaming it down to Earth is a decades-old idea. Now, a raft of companies say they could ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

Diamond rain falls on ice giants Uranus and Neptune, where intense pressure and heat transform methane into crystallizing diamonds. Scientists recreat ...

“If you build a map at a wavelength that water absorbs, you’ll see the water deck in the atmosphere, whereas a wavelength ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Tests on olivine hint that water-rich exoplanets could generate H2O internally, possibly explaining ocean worlds and even some of Earth’s early water.

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...