Exploring a Blazar
In the heart of an active galaxy, matter falling into a supermassive black hole somehow creates jets of particles traveling near the speed of light. For active galaxies classified as blazars, one of these jets beams right toward Earth. credit: NASARelated Videos
Word of the Day
Word of the Day
provided by The Free Dictionary
Today in History
This Day in History
provided by The Free Dictionary
Quiz Me
What are the two most abundant elements known in the Universe?
or View Results
RSS Feeds