NASA Administrator speaks about Orion test flight

NASA declared the Spitzer Space Telescope’s 16-year mission complete Thursday after sending final commands for the spacecraft to enter hibernation as it drifts farther from Earth.

After a spacesuit sizing problem prevented an all-female spacewalk earlier this year, astronauts Christina Koch and Jessica Meir will get a chance to make history Oct. 21 when they venture outside the International Space Station in the fourth of five excursions to install a new set of solar array batteries, NASA managers announced Friday.

Here’s a look by the numbers of the previous Atlas 5 and Delta 4 flight histories and the manifests for both rockets.