PhysicsTo create a wormhole that doesn't collapse, you need exotic matter Making a wormhole that a human could theoretically travel through would require an upside-down universe and negative energy Features
SpaceA supermassive black hole is hurtling away from its home galaxy For the first time, researchers have spotted what appears to be a supermassive black hole flying away from its home galaxy at incredible speeds, trailing bursts of star formation behind it News