Topic: Pluto (Dwarf Planet)

Rare failed star found circling sun-like star

The newfound failed star, known as a brown dwarf, has been dubbed PZ Tel B. It is separated from its sun-like companion star, PZ Tel A, by a distance similar to that between Uranus and the sun in our solar system.

This month, a rare view of dwarf planets Ceres and Pluto

Ceres and Pluto will come into opposition with the sun, offering a rare view of these two dwarf planets.

New telescopes could revolutionize astronomy, but at what price?

The case for adding new ground-based telescopes is compelling, astronomy experts say. But they cost $700 million to $1 billion apiece just to build.

Kids: Name your own minor planet

Children are being given the chance to name their own minor planet in a competition to mark the 80th anniversary of the discovery of Pluto. Space scientists' ruling body the International Astronomical Union has promised to consider the winning entries for real worlds now being discovered.

New Hubble images reveal Pluto's dynamic surface

The most detailed images yet of Pluto, taken by the Hubble Telescope, reveal a yellow-black sphere whose surface appears to be among the most dynamic in the solar system.

What's the buzz on the Orionid meteor shower last night?

Peak viewing time for the Orionid meteor shower occurred late last night and early this morning.

Comet Lulin arrives tonight - break out your telescopes

The Pluto Files

A lively account of the ‘exile’ of Pluto, everyone’s favorite ex-planet.

Across the Milky Way, more planet Earths?

Two new discoveries suggest that sunlike solar systems like ours – with life-hosting planets – are more common than previously thought.