Solar power satellite (SPS) advocates have been dreaming of using space resources to build massive constructions for decades.

Less than a year removed from a total solar eclipse that darkened the Natural State for more than four minutes in spots, ...

Several U.S. states from New Mexico through West Virginia will have a good chance at viewing the lunar eclipse on Thursday.

The discovery points to what astronomers have thought for decades, that Saturn's rings were caused by a massive collision about 100 million years ago.