RW Aur A star destroying exoplanet, illustration. At lower left is the X-ray spectrum of this system, as observed by the Chandra X-ray Observatory. This provided the evidence that a planet was destroyed by this star, breaking up to form the debris shown here. RW Aur A is a few million years old and is located about 450 light years from Earth, in the constellation Aurigae. Image published in 2018.