Helium Nova

Using NASA’s long-serving Hubble Space Telescope, astronomers have discovered that a stellar explosion in the Milky Way is blasting out cosmic bullets travelling at 20 million miles per hour. The cosmic explosion in question is V445 Puppis, which erupted in 2000 and is the only known “helium nova” in our galaxy. Though astronomers have been studying V445 Puppis for two decades…