Scientists discover three Earth-sized exoplanets that may potentially harbor lifeScience & Space February 23, 5:50
Syrian opposition ready for direct talks with government delegation — representativeWorld February 22, 21:56
UN Syria envoy expects no breakthrough at new round of Syria talksWorld February 22, 21:09
Russia opposes sharing responsibility for fate of Middle East refugeesRussian Politics & Diplomacy February 22, 20:36
First woman in space Valentina Tereshkova may meet with Queen Elizabeth IIRussian Politics & Diplomacy February 22, 20:27
Spain’s famous footballer Puyol returns to Russia next week ahead of FIFA 2017, 2018 CupsSport February 22, 20:15
Putin promotes generals to higher military ranks after Syria operationMilitary & Defense February 22, 19:56
Russia, Turkey may discuss purchase of S-400 systems at March talksMilitary & Defense February 22, 19:18
European human rights watchdog welcomes court’s ruling on Russian opposition activistWorld February 22, 18:42
NEW YORK, December 21, 22:32 /ITAR-TASS/. U.S. astronauts Rick Mastracchio and Mike Hopkins wrapped up their more than 5-hour spacewalk outside the International Space Station (ISS) on Saturday, December 21, ahead of schedule.
NASA said the astronauts had completed the first in a series of excursions aimed at replacing a degraded ammonia pump module associated with one of the station's two external cooling loops that keeps both internal and external equipment cool.
“The pump module encountered a problem on December 11 when an internal valve stuck in an incorrect position, causing temperatures in the station’s cooling lines to drop,” NASA said.
On Monday, Dceember 23, Mastracchio and Hopkins will make another spacewalk to begin the installation of a replacement pump module. If necessary a third spacewalk would occur on Christmas day to finalise the installation, NASA said.
Mastracchio now holds 43 hours and 58 minutes of spacewalking time during seven spacewalks, and Hopkins now holds 5 hours and 28 minutes during one spacewalk.
Saturday’s spacewalk was the 175th in support of space station assembly and maintenance, NASA said.