New research suggests that particles escaping from Mars' atmosphere have been accumulating on the surface of the planet's largest moon Phobos for billions of years. They could provide important new details about the history of both worlds.

Avi Loeb's Extraterrestrial: The First Sign of Intelligent Life Beyond Earth gives a case for 'Oumuamua being a product of an alien civilization.

During a White House press briefing on February 4, 2021, White House press secretary Jen Psaki confirmed the Biden administration's support fo NASA's Artemis program, whose long-term goal is to send the next man and first woman to the moon by 2024.

Thousands more satellites will soon orbit Earth. We need better rules to prevent space crashes.

An international team of astronomers has discovered a unique 6-star system where eclipses of all 6 stars can be seen from Earth.

A new study of data from NASA's bountiful Cassini mission shows that Titan's largest methane sea, Kraken Mare, is at least 1,000 feet - 300 meters - deep near its center. That's plenty of room for a future robotic submarine to explore.

Why is there is a universe at all? The question is a challenging one because it seems perfectly possible that there might have been nothing whatsoever – no Earth, no stars, no galaxies, no universe.

Astronomers announced this month that a new deep-field survey called JADES will be carried out with the James Webb Space Telescope, Hubble's much-anticipated successor. The Webb is due to launch later this year.

Most of the planets in our solar system have some sort of atmosphere and many have dynamic weather systems. But only one moon in the solar system, Saturn's large moon Titan, can say the same.

On Monday, February 1, 2 NASA astronauts will perform the 2nd in a pair of International Space Station spacewalks to finish installing a European science platform and complete long-term battery upgrade work. How to watch live.