While most 4th-graders are playing with dolls, this little astronomer found something stellar 240 million light years away. Kathryn Aurora Gray of New Brunswick, Canada, pored over images of a galaxy made on New Year's Eve and—with the help of her astronomer father—made an excellent discovery: the remnants of an exploding star. Kathryn is now the youngest person to find a supernova, reports Universe Today, and hers is efficiently named Supernova 2010lt. Looks like the Chandra X-ray Observatory has its work cut out. Click here for more.
(Read more supernova stories.)