[ad_1]
(Newser)
–
A major shortage of electricity at the International Space Station has delayed SpaceX's supply this week. SpaceX was supposed to launch a cargo Wednesday, reports the AP. But an old power switch unit malfunctioned Monday at the space station and disabled two power channels. The remaining six power channels are operating normally, according to NASA. NASA pointed out Tuesday that the station and its six astronauts were safe, but because of the crowded solar power grid, the launch of SpaceX is suspended at least until Friday. NASA wants to replace the failed unit to restore full power before sending SpaceX Dragon cargo capsule.
The blackout left the big robot arm of the station outside with a functional power channel instead of two. Two power sources are needed, one in backup, when the robot's arm is used to capture a spacecraft visiting like the Dragon. Flight Controllers will use the robot arm to replace the bad unit with a rescue unit later this week, which will prevent astronauts from going out during spacewalk. The solar wings collect and produce electricity for the entire space station. Failure of this critical system can disrupt power and affect operations. But nothing is pressing for this delivery: Northrop Grumman launched supplies two weeks ago. SpaceX, meanwhile, is still studying last month's loss of its new Dragon capsule designed for astronauts.
(Read more stories from the International Space Station.)
[ad_2]
Source link