Why do all planets in our solar system orbit the Sun the same way? This documentary unravels the cosmic forces, from the ...

Mercury currently appears as a bright "evening star" in the southwestern sky at sunset. Mercury will reach its greatest ...

The Habitable Worlds Observatory (HWO) is slated to be the next Great Observatory for the world. Its main focus has been ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

Comprehensive guide to November 2025 night sky events, including visible planets Saturn, Jupiter, Venus and Mercury, the year’s brightest supermoon and peak meteor showers.

Jupiter was shaping Earth's fate before our planet even existed, carving gaps in the early solar system that kept its ...

Harvard astronomer Avi Loeb has argued at length that 3I/ATLAS — the third-ever interstellar object ever detected, currently ...

Our solar system and galaxy were the first objects of study for what was going on in the universe. Among the various ...

The solar system is a grand cosmic stage where each planet and moon plays a unique role in a story billions of years in the making. From Mercury’s shrinking surface and Venus’s runaway greenhouse ...

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

After marking the 30th anniversary of the discovery of the first exoplanet around a sun-like star, we now look forward to ...

U.S. District Judge Susan Illston granted a preliminary injunction that bars the firings while a lawsuit challenging them ...