Comet 67P/Churyumov-Gerasimenko has its own far-ultraviolet aurora, data reveal. It is the first time such electromagnetic emissions in the far-ultraviolet have been documented on an object other than a planet or moon.
The Rosetta spacecraft ended its historic mission by crashing on the surface of the dusty, icy comet. It has spent 12 years chasing in a hunt that has provided insight into the early days of the solar system and captured the public's imagination.
NASA launched the Juno spacecraft in 2011 on a mission to study Jupiter, and now the spacecraft is almost to its target. Before it reaches the gas giant, Juno has already made history as it sets the distance record for solar power.
