Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

"Thanks for all your effort," wrote the first moonwalker. Neil Armstrong was appreciative, but as explained in his ...

The risk of an asteroid hitting Earth has doubled in a week but there are no plans yet to build a spacecraft to deflect the ...

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side.

So long as the weather cooperates, Saturn, Venus, Mars, Jupiter and the moon will be visible Sunday evening during an open house at the Indiana University Kokomo Observatory. The open house begins at ...

Summer-a time when the urge to explore places familiar and new beckons to young and old alike. Although the sun sets late during the summer months, we inevitably find ourselves outside looking at ...

While Asteroid 2024 YRA has a minute chance of hitting Earth in seven years, the co-lead of NASA's DART mission says a small spacecraft could deflect the space rock's course.

Scientists measured a chorus wave emerging from an unexpected place, and confirmed a key piece of a theory about how these ...

A recently released animation shows a new look at a large asteroid that has a small, but significant, chance of impacting ...

NASA will host its first Twitch event from the International Space Station next week, in a move hoping to draw in a new ...