December 18, 2017

22.05.11: Meteoroids: Sandblasting Satellites?

0.84mm diameter strike on the window of Shuttle Columbia seen after STS-35. (Credit: NASA).

Next time you use your mobile or GPS to bounce signals off of a satellite, thank Stanford professor Ingrid Close… she and other researchers like her think about meteoroid strikes and their potentially crippling effects on spacecraft, so hopefully you don’t have to. [Read more...]

15.05.11: Gravity Probe B Scores Another One for Einstein.

One of the Gravity Probe B Spheroids…(Credit: NASA/Don Harley)

A mission decades in the making has come to fruition. Recently, scientists have announced the results of the Gravity Probe B experiment. This mission was conceived way back in 1963 and had to await the birth of entirely new technologies before even reaching orbit. [Read more...]