Earth’s companion has allowed astronomers to define lunar cycles, navigate without technology, and understand celestial ...

When is the first day of summer? Find out all the facts about the longest day of the year! When is the first day of summer in ...

If you looked at the churning clouds near Jupiter’s pole, they appear like ocean currents on Earth — as if you’re looking at ...

NASA's Mars Odyssey spacecraft has captured a breathtaking image. The image shows Arsia Mons, a massive Martian volcano. The volcano is seen piercing through morning haze. Arsia Mons is twice the ...

As Mars approaches opposition this month, it will become a dazzling spectacle in the night sky. See it at its best now, or wait until 2027.

A team of researchers with a variety of backgrounds and affiliated with multiple institutions in the U.S. has taken a realistic approach to looking at the question of whether Mars could be ...

Mars rover spots Earth from a distance. By Mike Wehner. Published Jun 16th, ... Curiosity is aging, but it’s still going strong and continues to make new discoveries on Mars.

Explore the relics of failed settlements, doomed expeditions, and ancient Inuit history on Devon Island, one of the Arctic’s most unforgiving landscapes.

Much was riding on Flight 9 for Elon Musk’s giant moon and Mars rocket after debris from January and March flights fell into the Atlantic Ocean, disrupting air travel.

The Starship rocket did not achieve some of its most important testing goals, bringing fresh engineering hurdles to CEO Elon Musk's increasingly turbulent Mars rocket program.