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90 Why was it necessary to program InSight with an ability to land in dust storms? Nov 26 '18
77 Why are so many space telescopes placed in LEO instead of at Lagrange Points? And why do we hear about Hubble more than any Langrange-orbit telescope? Jun 16 '18
66 What is the farthest artificial satellite in orbit in our solar system? May 29 '18
45 What holds SpaceX’s rocket in place in this launch? Jun 21 '18
31 Has the ISS ever not had a lifeboat? Jun 11 '18
28 Could we see someone walking on Mars from Earth? Sep 5 '18
27 What is the purpose of the satellite that China is putting in lunar orbit? May 22 '18
25 Does anyone recognize these rockets, and their location? Jun 13 '19
25 Why is Voyager/Pioneer so slow compared to Parker Solar Probe? Dec 13 '18
25 Why does the 2nd stage of Falcon 9 need compressed He tanks? Jun 10 '18
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