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Blue Giant Stars

Blue stars are large and compact, this causes them to burn their fuel quickly which in turn makes their temperature very hot.  These stars often run out of fuel in only 10,000 – 100,000 years.

A blue giant is extremely bright.  Like a lighthouse, they shine across a great distance.  Even though blue giant stars are rare, they make up many of the stars we see at night because they shine so brightly.

Blue giant stars die in a spectacular way.  They grow larger just like the sun-sized stars, but then instead of shrinking and forming a planetary nebula, they explode in what is called a supernova. Supernova explosions can be brighter than an entire galaxy, and can be seen from very far away.

Did you know?

Because blue giant stars only live a short time, scientists use them to find places in outer space where new stars are forming.