Space Travel
22, May, 2012

Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.

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Term Definition
Glitch
A sudden change in the rotation rate of a pulsar. These are particularly prominent in the Vela Pulsar and the Crab Pulsar but many others also show them. In the Vela pulsar the jumps amount to 200 nanoseconds, which is twenty times larger than the steady decrease in period. Glitches are thought to be caused by starquakes.