Astronomers have found a planet orbiting around a distant star. The newly-discovered alien world is located 340 light years away from Earth and has characteristics similar to planet Mercury. ...
Astronomers have found a planet orbiting around a distant star. The newly-discovered alien world is located 340 light years away from Earth and has characteristics similar to planet Mercury. ...
Nearly all of the Earth's life-giving carbon could have come from a collision about 4.4 billion years ago between the Earth and an embryonic planet similar to Mercury, say scientists including an...