A problem with the International Space Station’s cooling system will require a series of spacewalks to fix, pushing the planned Thursday (Dec. 19) launch of a private cargo spacecraft into next month.

NASA has decided that three spacewalks — one each on Dec. 21, Dec. 23 and Dec. 25 — will be necessary to replace a faulty pump module on the orbiting lab. The holiday spacewalks will postpone the first contracted cargo mission of aerospace firm Orbital Sciences’ unmanned Cygnus spacecraft until mid-January at the earliest, NASA officials announced today (Dec. 17).

Each of the three spacewalks is scheduled to begin at 7:10 a.m. EST (1210 GMT) and last 6 1/2 hours. You can watch coverage of the extravehicular activities here on SPACE.com beginning each day at 6:15 a.m. EST, courtesy of NASA TV.

via NASA Plans 3 Spacewalks to Fix Space Station, Delaying Private Cargo Launch | Space.com.

China’s lunar rover Yutu (“Jade Rabbit”) is seen by a camera on the country’s Chang’e 3 lander after both successfully landed on the moon together on Dec. 14, 2013. It is China’s first lunar rover

Credit: CNTV

China’s first-ever moon rover is driving on the lunar surface after successfully separating from its carrier lander to begin exploring its landing locale: the Bay of Rainbows.

The Chang’e 3 lunar lander reached the moon Saturday (Dec. 14) at about 9:12 p.m., Beijing time, making China only the third country in the world to achieve such a moon feat after the former Soviet Union and the United States. The lander also delivered the robotic rover Yutu (“Jade Rabbit”) to the lunar surface to begin its months-long driving mission.

A few hours after landing, Yutu’s wheels were unlocked by the firing of explosive devices and the rover unfolded its solar wings and deployed its instrument-laden mast. A cable connecting the rover and lander was then cut. A “transferer” system — resembling a pair of ladders set up on the lander —then unlocked to inch down closer to the lunar surface, allowing the Yutu rover access to the moon’s surface to begin its lunar trek.

via China Moon Landing: ‘Jade Rabbit’ Rover Basks in Lunar Bay of Rainbows | Space.com.