Watch this video to find out more about the Earth, planets in our Solar System and other planets far ... The largest object is the asteroid belt is the dwarf planet Ceres, which is 950km in ...

Astronomers think that a dwarf planet hiding in the middle of our solar system could be a source of frozen water. The dwarf planet Ceres is located in the asteroid belt between Mars and Jupiter.

If planet X exists, it is likely a gas giant similar to Neptune. NASA/Caltech/R. Hurt (IPAC), CC BY Our solar system is a particularly crowded place. Millions of objects move within it, whether they ...

Now European Southern Observatory (ESO) thinks one of the objects floating along the main belt might be the smallest dwarf planet in our solar system — an asteroid known as Hygiea. Hygiea isn ...

Data gathered in 1983 shows signs of what a British astronomer believes to be possible evidence of a ninth planet in our solar system ... Pluto’s demotion to dwarf planet.

New exhibit to replace Greenbelt Planet Walk with a new trail through Julia Davis Park — but this time, with one less member ...

Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. Computer simulations suggest that there is an undiscovered Earth-like ...

Best known for driving demotion of Pluto to dwarf planet, astronomer Mike Brown discusses the next horizons in our solar system, including the hunt for the elusive Planet 9. This article was ...