When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

NASA is tracking a truck-sized asteroid which is set to hurtle by Earth today at many times the velocity of a speeding bullet. The space rock—dubbed "2025 BV5"—is estimated by NASA's Jet Propulsion ...

On 27 December last year, astronomers using the ATLAS survey telescope in Chile discovered a small asteroid moving away from ...

Loki Patera is 202 kilometres (126 mi) in diameter, covers 20,000 sq km (7,700 sq mi), and was the largest volcanic feature found on Io until these new observations revealed the hot spot in the south ...

NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...

There are 20 amino acids that create the proteins required for life on our planet — and scientists have now found exactly 14 ...

Scientists have finally had a close look at the rubble collected by a NASA spacecraft from an asteroid. In it, they've found ...

Material retrieved from the asteroid Bennu by NASA’s OSIRIS-REx spacecraft shows that all the basic building blocks of life ...

Scientists have detected organic compounds and minerals necessary for life in the samples collected by the OSIRIS-REx mission ...

Astronomers studying data from the Juno spacecraft discovered a volcanic hot spot in the Southern Hemisphere of Jupiter’s moon Io. The volcanic region belches out eruptions six times the total energy ...