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

Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

When is the next leap year? Here are some fascinating leap year facts, along with all the details about why leap day always falls on Feb. 29.

ANDES stands for ArmazoNes high Dispersion Echelle Spectrograph. AndES is a high-resolution instrument that can search for ...

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 ...

Have you ever wondered why the planets in our solar system align along a flat plane? Discover the science behind this cosmic arrangement, from the formation of the protoplanetary disk to the forces ...

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

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 ...

New insights from NASA's OSIRIS-REx mission have unveiled intriguing clues about the potential origins of life on Earth. The mission, which launched in Septembe ...

While Resilience and Blue Ghost are in orbit and preparing to leave for the moon, another lunar lander — Intuitive Machines ' IM-2, or Athena — recently arrived at Cape Canaveral to loaded atop of a ...