Geek Fact for February 23rd
In 1987, Supernova 1987A was first seen. It was the first naked-eye supernova since 1604. Because of its relative proximity to Earth, Supernova 1987A is by far the best-studied supernova of all time. Learn more at http://heritage.stsci.edu/1999/04/sn1987anino.html
Geek Fact for February 23rd Read More »