2010 RF12 and another small asteroid that passed close to earth Wednesday were detected three days before their fly-by, illustrating the improving capability of asteroid-spotting telescopes.
2010 RF12 is the second asteroid today to make a close pass at the Earth. Well, relatively close. It'll scoot between the Earth and Moon, passing about 49,000 miles away,
In an unprecedented event, two asteroids will pass our planet Wednesday at a distance closer than the moon. Neither rock threatens to strike the earth, say astronomers.
The governor's race will pit the governor who signed the Arizona immigration law, Jan Brewer, against the attorney general, one of its main opponents.
Sen. John McCain's record as an immigration reformer doesn't seem to match a state that's taking a hardline stance on illegal immigration. But the senator is managing to fend off a challenge from his right ahead of Tuesday's GOP Senate primary in Arizona.
An unused Winnebago went to a needy handyman, with visions of free labor in return.
Boys wait in line to make a phone call as they are joined by hundreds of mostly Central American immigrant children that are being processed and held at the US Customs and Border Protection Nogales Placement Center on June 18, 2014, in Nogales, Ariz.
Both opponents and supporters of the Arizona immigration law are confident of winning in the end. But Wednesday's ruling may cool tempers for a while.
This year's Tour de France is considered one of the toughest in years, more than 300 miles longer than last year.
Uranium on the moon: A new moon map might dash hopes for those who want to build a lunar nuclear power plant, but may also offer clues to the moon's formation.