NASA's Wild Tale of a White Dwarf Merger Explains What Happens When Stars Collide

NASA's Wild Tale of a White Dwarf Merger Explains What Happens When Stars Collide

A white dwarf star is as dense as a city squished into the size of the Earth. Usually that’s the end of a star’s life. But sometimes they don’t go quietly. An international team of astronomers using NASA’s Hubble Space Telescope discovered a rare beast: an ultra-massive white dwarf formed by a catastrophic collision with [...]