On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Ceres is the largest object in the asteroid belt, and NASA’s Dawn ...

Pluto's days, though they drag on a bit at around 153 hours, are nothing compared to its years. Pluto's orbit takes 248 Earth ...

This article was originally published on The Conversation. The publication contributed this article to Space.com's Expert Voices: Op-Ed & Insights. Ceres is the largest object in the asteroid belt, ...

A kindergartener in 2005 and a kindergartener in 2006 would have learned very different facts about the number of planets in the solar system. 2006, of course, was the year Pluto was reclassified as a ...

In 2015, scientists got their best glimpse yet of dwarf planets, when two NASA spacecraft visited distant worlds. In March, the Dawn mission arrived at Ceres, which lies in the asteroid belt between ...

Nearly a decade ago, Pluto was stripped of its planetary status. But if you were alive two centuries ago, you could have been just as smug about Ceres, too. On March 6, NASA’s Dawn spacecraft will ...

NASA’s Dawn spacecraft recently made its closest flyby of Ceres, sending back the most detailed views of its surface. Ceres is the largest object in the Main Asteroid Belt located between the orbits ...

Ceres is the largest object in the asteroid belt, and NASA’s Dawn spacecraft will arrive at this dwarf planet on March 6, 2015. Pluto is the largest object in the Kuiper belt, and NASA’s New Horizons ...

The word “planet” came from the ancient Greek words that mean “wandering star.” That makes sense, because for thousands of years, people have watched planets change position in the night sky – unlike ...

Am I seeing spots before my eyes? New images from the Dawn spacecraft show lots more detail on the asteroid Ceres. We're getting closer and closer to Pluto. Asteroid / dwarf planet Ceres mystery white ...

TWO lonely but hip robots will take us into our solar system’s darkest corners this year, and they’re already giving us tantalising Tweets of what is to come. Space exploration is ramping up: 2014 was ...