What were you doing 90 million years ago?

Supernova Birth Observed for First Time

While peering at her computer screen four months ago, astronomer Alicia Soderberg expected to see the small glowing smudge of a month-old supernova. But what she and her colleague saw instead was a strange, extremely bright, five-minute burst of X-rays.

With that observation, they became the first astronomers to catch a star in the act of exploding.

From Space.com