SpaceSuper-bright black holes could reveal if the universe is pixelated Space-time may not be continuous but instead made up of many discrete bits – and we may be able to see their effects near the edges of unusually bright black holes News
SpaceAstronauts could hitch a ride on asteroids to get to Venus or Mars Asteroids that regularly fly between Earth, Venus and Mars could provide radiation shielding for human missions to explore neighbouring planets News