SpaceBlack holes and lasers could let us cheat at interstellar travel Firing a laser at a pair of black holes can produce more energy than you start with, letting you travel the galaxy without needing a large amount of fuel News
SpaceDistant Ultima Thule is a weirdly flat snowman that defies explanation Images from the New Horizons spacecraft show that the distant space rock Ultima Thule is flatter than we thought, and we don’t know why it’s so strange News