Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

Mars isn’t a bright, fire-engine red, but the iron oxide in its rocks makes it appear redder than other planets, especially ...

An international team of astronomers including researchers at the University of Arizona Lunar and Planetary Laboratory has ...

The idea of terraforming Mars—essentially reshaping the planet to support Earth life—has captured imaginations for decades.

A team of international astronomers has uncovered what may be a gas giant planet forming around a distant young star. Using ...

As astronomers study an exoplanet called K2-18b, conflicting research reveals how difficult it is to find evidence of life ...

Curiosity’s mission was originally supposed to last no more than two years but was extended indefinitely after it ...

As climate change accelerates and politicians continue to argue, scientists are exploring radical new ways to protect our ...

Dusty clouds made of sand—that may rain iron—blanket a giant planet orbiting a young, sun-like star just 310 light-years from Earth, the James Webb Space Telescope has revealed. The discovery was made ...

It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets ...

These majestic landscapes have always been dangerous, but as the world warms, mountains are becoming much more unpredictable ...