skip to main content
3 posts tagged with Mars by stbalbach.
Displaying 1 through 3 of 3.
Curiosity has been on Mars for 51 sol-days and today NASA
announced it has found what
looks like a concrete slab made up of rounded stones
which is probably an ancient
stream bed formed by hip-deep fast-moving water over thousands or millions of years. Observers have long hypothesized the canyons and river-like beds photographed from space were carved by water, but only now do researchers have on-the-ground confirmation for the first time.
posted by stbalbach
on Sep 29, 2012 -
71 comments
The most accurate navigation in history. "We had to know everything from how the iron molten lava in the center of the Earth was churning to how plate tectonic movements were affecting the wobble of the Earth to how the plasma in the atmosphere delayed the radio signals to and from the Deep Space Network stations". ..even the seemingly insignificant solar radiation pressure and thermal radiation forces acting on the spacecraft to a level equal to less than a billionth of the acceleration of gravity one feels on the Earth needed to be taken into account. This mission set a new standard for navigation accuracy for all future interplanetary missions.
posted by stbalbach
on Jan 4, 2004 -
2 comments
Page:
1
