The oldest known rock from Mars was discovered on Earth in 2022. Scientists are beginning to reveal its mysteries.

Mars once had active volcanoes, like Olympus Mons, which is three times higher than Everest, and so massive that when it ...

Northern Hemisphere celestial highlights for November 2026, with a supermoon, Mercury rising and a conjunction of Mars and ...

Recent fractures on the surface of Mars and gases detected by an orbiter probe provide some of the strongest evidence yet ...

Uranus: Uranus is in the night sky every day in November, rising in the east shortly before sunset and setting in the west ...

Looking for a sky event this week? Check out our full Sky This Week column. November 1: The Moon in Cancer The Moon slides ...

Are there still active volcanoes on Mars? New detections of hydrogen chloride from below the surface suggest flowing magma.

Object 2026 ED138 was spotted beyond Pluto using observations from the Vera C. Rubin Observatory, and scientists say it could be among the largest dwarf planets ever found.

The recent findings, published in Science, suggest that Teghaza 001 is one of the oldest Martian meteorites ever found on ...

A team of astrophysicists from Northwestern University has developed a new method to cut through the bright glare of ...