YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

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

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

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

Five years ago, NASA provided an updated version of the Pale Blue Dot. JPL engineer Kevin M Gill reprocessed the image with modern tools but following the original approach, even receiving inputs from ...

The 1990s was filled with swoon-worthy heartthrobs. From Keanu Reeves to Josh Hartnett, here's which of your '90s crushes is ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...

Is it a bird? Is it a plane? No, it's super Neptune! But this Superman-mimicking planet is not blasting through space on its own. It is being dragged along by its parent star.

The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...

Jupiter has been high in the sky in the evening lately, and that stirred a memory of the first time I ever saw Jupiter ...

The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...

Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks as the world's telescopes ...