The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

When we think of exoplanets that may be able to support life, we home in on the habitable zone. A habitable zone is a region ...

A team of astronomers at the University of Hawai’i at Mānoa provided evidence in a study, published in The Planetary Science ...

Tiny grains from asteroid Ryugu are revealing clues to the magnetic forces that shaped the far reaches of the solar system over 4.6 billion years ago. The findings suggest the distal solar system ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

"We are basically almost landing on a star." Today, NASA's Parker Solar Probe will complete its seventh swing past Venus — ...

While that sounds like a huge distance, it is actually very close on a solar system scale: The closest planet to the sun, ...

Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...

Research indicates that the James Webb Space Telescope could help confirm the presence of life-supporting atmospheres on exoplanets in the "Goldilocks zone," enhancing the likelihood of discovering ...

Planet-forming disks are rapidly disintegrated when blasted with high-energy radiation from massive young stars.

The nearby bright star Vega is surrounded by a surprisingly smooth, 100 billion-mile-wide disk of cosmic dust, confirming ...

The expectation is that a victory by Trump will lead to faster economic growth and more market-friendly policies.