Saturday, February 21, 2009

comet lulin in x-rays!

NASA released a lovely composite image of comet lulin. on january 28th, the swift gamma-ray satellite captured comet lulin with ultraviolet and optical light (blue and green), and x-rays (red).

there's a big cloud of atomic gas around the comet. when streams of particles from the sun, called solar wind, react with the comets extended gas, they emit x-ray light! as far as i know, this is the first view of a comet with such a range of wavelengths!

1 comment:

Anonymous said...

Thanks for linking to us! We were really happy with how the images turned out.