A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
Astronomers have discovered fresh evidence suggesting the possible existence of an unseen planet in the far reaches of our solar system.
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 ...
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 ...
Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...
A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system. New evidence found in shavings from a meteorite known as Northwest Africa 12264 — a 50-gram (1.8 ...
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