Related topics: solar system

Planet Nine could spell doom for solar system

The solar system could be thrown into disaster when the sun dies if the mysterious 'Planet Nine' exists, according to research from the University of Warwick.

Ceres: The tiny world where volcanoes erupt ice

Ahuna Mons is a volcano that rises 13,000 feet high and spreads 11 miles wide at its base. This would be impressive for a volcano on Earth. But Ahuna Mons stands on Ceres, a dwarf planet less than 600 miles wide that orbits ...

Search narrows for Planet Nine

US astronomers announced last month they may have found a ninth planet beyond Neptune, but conceded they had no idea where on an estimated 10,000-20,000-year orbit it might be.

Dwarf planet Ceres offers big surprises for scientists

The closer we get to Ceres, the more perplexing the dwarf planet grows. NASA's Dawn spacecraft has found several more bright spots as well as a pyramid-like peak jutting out of the frigid world's surface.

NASA craft discovers heart shape on Pluto as flyby nears

There's a near-perfect heart shape on Pluto's rusty red surface which scientists are seeing for the first time as a piano-sized NASA spacecraft, New Horizons, hurtles toward the distant body on its way toward a historic flyby ...

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