James Webb Space Telescope's rocket begins fueling up for launch

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James Webb Space Telescope's rocket begins fueling up for launch

The rocket that will finally launch NASA's James Webb Space Telescope today (Dec. 25) has begun fueling for liftoff. 

About four hours before the planned Christmas morning launch, the Ariane 5 rocket began filling up with 175 tons of propellant; 150 tons of liquid oxygen and 25 tons of liquid hydrogen are now flowing into the rocket's core stage. Another 15 tons of propellant will be loaded into the rocket's upper stage, and fueling is expected to be completed by one hour and 22 minutes before launch, a NASA spokesperson said in an update on NASA TV. 

The Ariane 5 rocket with NASA’s James Webb Space Telescope on board is seen on the launch pad at the Guiana Space Center in Kourou, French Guiana, on Dec. 23, 2021.

Provided by Space The Ariane 5 rocket with NASA’s James Webb Space Telescope on board is seen on the launch pad at the Guiana Space Center in Kourou, French Guiana, on Dec. 23, 2021.

The James Webb Space Telescope is scheduled to lift off from the Guiana Space Center in Kourou, French Guiana, at 7:20 a.m. EST (1220 GMT). You can watch live launch coverage here on Space.com, courtesy of NASA TV, beginning at 6 a.m. EST (1100 GMT).

"A series of other briefings will be conducted over the next few hours to ensure that conditions remain favorable for launch," NASA's spokesperson added, "all this while Webb's systems are being carefully monitored for the momentous launch of the largest most powerful telescope ever sent away from our planet." 
Reference: Space.com: Hanneke Weitering
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