Newest supernova

Astronomers have found evidence of a supernova, dubbed G1.9+0.3, that occurred just 140 years ago in our galaxy, The Milky Way.

A supernova occurs when a star reaches the end of its life and explodes. They are fairly rare but important as they release heavier elements into the interstellar medium.

This nova was buried deep within a dense cloud of gases and other debris, so optical telescopes were no good: it was found by radio telescopes that detected the burst of x-rays and radio waves.

More here, in NASA’s press release.

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