Earth is the only life-supporting planet in our Solar System. Until now. Today, we’re bringing Kepler 22-b into our planetary ...

Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

A comet that was born in another solar system and could be billions of years old is hurdling through Earth’s solar system — a discovery made on July 1 that’s led some astronomers to speculate that the ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.

Scientists tracked active solar region NOAA 13664 for 94 days, showing how persistent magnetic complexity drives flares and ...