Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something ...

For decades, Uranus baffled scientists because it seemed to have no internal heat. Now, new computer modeling shows the ...

Using the European Southern Observatory 's (ESO) Very Large Telescope (VLT), astronomers have caught it pulling in gas and ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system. It’s an unprecedented ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

Many planetary systems are born in slightly tilted protoplanetary disks, which would explain the misaligned orbits from the ...

Somewhere at the edge of the solar system a new Earth-sized world might be lurking, dubbed Planet Y. Astronomers have long proposed that there might be hidden planets beyond the Kuiper belt, a region ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...