During the past 10 years, Presidents George W. Bush and Obama have directed NASA to turn the job of transporting cargo and crew to the space station over to the private sector. As that process gathers pace, here is a list of the key players.
Though he doesn't foresee North Korea taking serious military action, Gen. Martin Dempsey, the chairman of the Joint Chiefs of Staff, said the Pentagon has bolstered its missile defenses to be prepared.
$4m of pot on beach: The $4 million in marijuana found near an abandoned boat near Santa Barbara is not the first. Police say more than 20 of these pot smuggling boats have landed in the area in the past year.
In Musk's vision, the ambitious Mars settlement program would start with a pioneering group of fewer than 10 people, who would journey to the Red Planet aboard a huge reusable rocket powered by liquid oxygen and methane.
The second classified mission for the National Reconnaissance Office to launch in nine days blasted off with the most powerful liquid hydrogen rocket engines ever built. The spy agency plans a third launch in August.
An Atlas 5 rocket successfully launched a National Reconnaissance Office spy satellite on Monday, just days after the Air Force's secret X-37B space plane returned from its secret 15-month mission in orbit.