NASA’s Spitzer Space Telescope has picked up on what seems to be evidence of two planets impacting and then exploding in a oh-dear-God-it’s-like-the-Death-Stars-all-over-again-no-no-nooooooooooo way.

Scientists have shown that Earth’s basic chemistry solidified within just three million years of the Solar System’s formation. Initially, the planet was barren and inhospitable, missing water and ...