By combining the four giant telescopes of the Very Large Telescope, an international team has observed the exoplanet WASP-121b with unprecedented precision, revealing one of the most extreme climates ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with ...

The giant-impact hypothesis posits that billions of years ago a Mars-sized body named Theia collided with the early Earth.

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Galaxies, planets, black holes: to most people, everything about our Universe sounds and feels enormous. But while it's true ...

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

Engaging articles, breathtaking images and expert knowledge Issues delivered straight to your door ...

The gas giant WASP 121b, also known as Tylos, has an atmospheric structure unlike any we have ever seen, and the fastest ...

Sagittarius A*, our galaxy's supermassive black hole, is constantly producing strange eruptions. Astronomers are using the ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...