Space News Archive - February 16, 2007
Imagine two stars with winds so intense that they eject an Earthâ€™s worth of material roughly once every month. Next, imagine those two winds colliding head-on. Such titanic collisions produce multimillion-degree gas, which radiates brilliantly in X-rays.
Hunting for traces of life on Mars calls for two radically different strategies. Of the two, we can most easily look for evidence for past life, preserved as fossil "biosignatures" in old rocks.
Strong upper level winds forced NASA to abort plans to launch five satellites on a single rocket Friday from the Cape Canaveral Air Force Station, officials said.
- The navel or umbilicus.
- In Greek archaeology: A central boss, as on a shield, a bowl, etc.
- A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.