When Stars CRASH… 💥

Added: 2026-05-19

[00:00:00]A kilonova occurs when two neutron stars collide, unleashing a brief but brilliant blaze that lights the cosmos.

[00:00:07]The explosion unleashes radioactive debris that glows from ultraviolet to infrared, weaving new heavy elements into space.

[00:00:15]Astronomers use the afterglow to trace how swiftly the universe builds metals like gold and platinum.

[00:00:22]In 2017, gravitational waves from such a merger were observed alongside a visible kilonova, confirming a key prediction [music] of stellar physics.

[00:00:32]A fun takeaway is that these cosmic furnaces explain why precious metals exist and eventually find their way into planets.