Astronomers have calculated that 6 percent of our galaxy's most common type of star probably host temperate, Earth-sized planets, meaning that a habitable alien Earth could be just a dozen light years away.
Comet ISON could put on a spectacular display in late November. Comet ISON could shine brighter than the moon in the night sky. Comet ISON was photographed by NASA's Deep Impact probe earlier this month.
Pacific earthquake: An 8.0 Pacific earthquake hit about 1,000 miles northeast of Australia. Over the past half-century, three 9.0 or higher 'superquakes' have hit the Pacific's Ring of Fire, pushing scientists to rethink their models of earthquake formation.
The largest prime number yet discovered, 2 raised to the 57,885,161 power minus 1, is 17,425,170 digits long, which is 4,446,981 digits longer than the previous record holder, the 12,978,189-digit-long 2 raised to the 43,112,609 power minus 1, which was discovered in 2008.
If true, the study, casts doubt on the idea that modern humans and Neanderthals co-existed — and possibly even interbred — for millennia, because humans aren't believed to have settled in the region until 42,000 years ago.