SpaceTwo dead stars provide low-tech way to test Einstein The orbit of a binary star system is changing so quickly due to gravitational waves that you could measure it with your wristwatch ¿ìè¶ÌÊÓÆµ
SpaceBlack holes could act as cosmic Rosetta stones A mathematical makeover means these strange objects could be used to translate between gravity and quantum mechanics ¿ìè¶ÌÊÓÆµ