In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, ...

Of the nearly 6,000 confirmed exoplanets in the Milky Way, Tylos has one of the most-studied atmospheres out there. It's what we call a hot Jupiter – a world comparable in size to our own gas giants, ...

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

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

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 ...

What did Newton understand that was such a revolution? Can someone just... explain gravity to me? Let's start with a ...

More than 1 million "interstellar objects" the size of the Statue of Liberty could be drifting unseen in the outer solar ...

A tiny star is making big moves — whether its accomplice likes it or not. Astronomers have spotted a star just a fraction the ...

Many scientists have long thought that developing planets should resemble the swirling disk of gas and dust that births them.

Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

For this, astronomers used two facilities: the Submillimeter Array (SMA), CfA's eight-dish collection of radio telescopes in ...