High on a ridge 5,250 meters above sea level in southwest China’s Xizang Autonomous Region, a new eye onto the infant ...

Astronomers have uncovered a massive, hidden exoplanet nestled in the dusty disc of a young star—MP Mus—by combining ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

The full moon will come "with a celestial bonus—setting in the early morning sky near a dazzling alignment of Saturn, Venus, and Jupiter." ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Although the Buck moon reaches its peak today, it will still be visibly full through July 11, so if you can't catch it at its peak tonight, you'll still have a chance to enjoy the full moon in all its ...

The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

Explore daily insights on the USA TODAY crossword puzzle by . Uncover expert takes and answers in our crossword blog.

"Eight minutes later, the orbiter started receiving data from the descent probe, which slammed into the top of the Jovian ...

Venus: Venus dazzles in the eastern sky before sunrise, shining brightly for a couple of hours each morning. It’s joined by ...

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...