... Quantum Gravity Claimed Detected on Earth . ... A theory known as Quantum Mechanics tells us about how the universe works on the smallest scales, while Einstein's General Theory of Relativity tells us about how gravity and the universe works on the largest scales. ... Stars Without Galaxies . ... Galaxies are made up of stars, but are all stars found within galaxies? ... Above is an artist's vision of the sky from a hypothetical planet of such a lonely sun. ... Pick a Galaxy Any Galaxy . ... April ....