December 18, 2010 – 2:55 pm
Early in the morning of Tuesday, December 21st (barring clouds), a total lunar eclipse will be visible to all of North America. This takes place when the Earth slides between the sun and the fully illuminated moon, casting its shadow on the moon. You can read about lunar eclipses in general here: http://en.wikipedia.org/wiki/Lunar_eclipse and about [...]
December 18, 2010 – 1:57 pm
Spirit and Opportunity landed at two widely separated spots on Mars in January 2004. Guaranteed to each last for only a 90-day mission, they have far exceeded their warranties. Although Spirit has not been heard from since March and is probably dead, Opportunity rolls on. It has just reached the rim of Santa Maria crater, [...]
