NASA

1. light curves- a. used to messure planets mass and size by astronomers seeing the light.
b. 100% on quiz
c. http://amazing-space.stsci.edu/
2. dark matter - the blackness that we see in space. Made of weakly interactive massive particles that absorb enough light to the point where we cant see it.
b. 100%
c. http://cdms.berkeley.edu/Education/DMpages/index.shtml
3. Black hole-a. 50 times bigger than our sun and strong enough to bend light. thought to be able to slow time
b. no quiz but i would have gotten 100%
c. https://astrophysics.gsfc.nasa.gov/imagineWiki/ResourcesAg#BH
4. x-ray telescope-a. these telescopes can messure engergy emitted from stars and other powerful objects in space.
b. 100%
c. http://constellation.gsfc.nasa.gov/