Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...
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 ...
A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.
Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...
Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...
The official number of planets outside our solar system has reached 6,000, according to space scientists. NASA's tally of exoplanets does not include more than 8,000 additional candidate planets ...
Astronomers have been racing to get a better look at 3I/ATLAS, a mysterious object screaming into our solar system from far beyond. Now, as the BBC reports, new observations by the Gemini South ...
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