For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

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

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 ...

PT5, a near-Earth object discovered last year, has captivated scientists with its potential lunar origins. Likely ejected ...

NASA's Juno spacecraft has spotted the most powerful volcanic eruption ever seen on the solar system's most volcanic body, ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

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 ...

For a few months, Earth had a second moon — a tiny asteroid that may have been a piece of our own Moon ...

The new moon of January will be at 7:36 a.m. Eastern Time on Jan. 29, according to the U.S. Naval Observatory, and two days ...

NASA's Europa Clipper Sails Toward Ocean Moon of Jupiter Oct. 14 ... Great Red Spot (GRS), an anticyclone large enough to swallow Earth, for at least 150 years. But there are always new surprises ...