planets

Astronomers have directly observed two worlds beyond our solar system shedding their outer layers into space for the first time.…

For the last month and change, you might’ve seen the headlines about the planetary alignment, or a planetary parade, going…

For centuries our solar system was the only planetary system known to humans. We had no proof other worlds existed…

Scientists have discovered evidence that liquid water was once exposed to the air in ancient, shallow lakes on Mars. The…

Scientists believe that two asteroids might be fragments of long-lost “planetary embryos” from the early solar system. These embryos, somewhere…

The Perseverance Mars rover has collected a rock sample on Mars unlike any other it has picked up so far.…

When I was a kid, there were nine planets. Now we know of thousands! But that includes exoplanets, alien worlds…

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the…

Illustration of an exoplanet in the early universe Darryl Fonseka/Alamy Conditions in the early universe might have enabled rocky planets…

The night sky can be breathtaking, but to really explore its wonders, you’ll want a telescope. Now’s the perfect time…