What is Hubble's Law and its significance? - What is Hubble's Law and its significance?
Describe the large-scale structure of the universe.
(Please reply in your own words, if possible)
Star Measurements - a.) Briefly describe three ways that distances to stars can be measured.
b.) Name an object, not man made , that emits light in pulsars similar to those from a pulsar. Any wavelegnth is okay. Could ...
Black Hole - 7. The Sun Rotates around the Milky Way Galaxy at a speed of
a. 250 Km / sec and it makes an orbit in 20 Million years
b. 20 Km / sec and it completes an orbit in 220 Million years
c. ...
Light Spectrum - How can the temperature, composition and motion of an object be determined from its light spectrum.
cite references & urls