On February 28, 2025, a rare planetary parade will occur, with all seven solar system planets aligned on one side of the Sun.

"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey ...

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

Astronomers have peered through the atmosphere of a planet beyond the Solar System, mapping its 3D structure for the first time. By combining all four telescope units of the European Southern ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.

A parade of seven planets is set to appear in the night sky this month, and it will be the last of its kind until 2040.

The year 2025 has already been a spectacular time for stargazers and skywatchers. Last month, Venus, Mars, Jupiter, Saturn, ...

Researchers have peered into the atmosphere of planet WASP-121b and found its climate is stranger than anyone imagined.

NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar system was the only planetary system known to humans. We had no proof other ...

When was Pluto discovered? Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory ...