What (actually) makes Iridium the world's only truly global mobile satellite communications company?8yr ⋅ uhoh-12102 ⋅ se/space
Has DSS-43 ever been used in high power mode (>>20 kW) for an emergency situation?8yr ⋅ uhoh-12102 ⋅ se/space
How can just making the ground broadcast stronger neutralize a zombie(sat)?8yr ⋅ uhoh-12102 ⋅ se/space
Why do the LRO's orbital elements appear to constantly oscillate - except recently?7yr ⋅ uhoh-12102 ⋅ se/space
final conclusion/description of the cause of the SpaceX Sept. 1, 2016 anomaly,7yr ⋅ uhoh-12102 ⋅ se/space
Will suits worn on Mars lose kilograms of expendable water each time they are used?8yr ⋅ uhoh-12102 ⋅ se/space
Is NASA doing research on mini-magnetospheres to protect crew from radiation in space?7yr ⋅ uhoh-12102 ⋅ se/space
How will the ExoMARS Rover keep it's solar panels dust-free and collecting maximum power?8yr ⋅ uhoh-12102 ⋅ se/space
Could an ISS astronaut photograph something like this 1km Van Gogh if they knew it was there?8yr ⋅ uhoh-12102 ⋅ se/space
Which two satellites had a 44% probability of collision at 2017-01-07 21:53 UTC?7yr ⋅ uhoh-12102 ⋅ se/space
How many earth stations had astronauts on-site during John Glenn's orbit in Friendship-7?8yr ⋅ uhoh-12102 ⋅ se/space
Were there any STS missions that included maneuvers that might have photographed ISS's top side?7yr ⋅ uhoh-12102 ⋅ se/space
Thrust and rotation strategy to circularize a standard GTO orbit using ion propulsion?8yr ⋅ uhoh-12102 ⋅ se/space
Was this printer shown the ISS in 2015 built specially to work in microgravity?8yr ⋅ uhoh-12102 ⋅ se/space
Is 45 km unusually close to pass the ISS and deploy a microsatellite without warning?8yr ⋅ uhoh-12102 ⋅ se/space
Rocket Engine Plumbing: Still don't understand the Full Flow Staged Combustion Cycle8yr ⋅ uhoh-12102 ⋅ se/space
How (actually) do sub-cooled propellants reduce cavitation within turbo pumps and make feed easier?8yr ⋅ uhoh-12102 ⋅ se/space
What are these structures on the Lunar Ranging Retro Reflector (LRRR) arrays for?8yr ⋅ uhoh-12102 ⋅ se/space
Supply of liquid oxygen (LOX) maintained on the ISS? Kept cold using space, or refrigerator?8yr ⋅ uhoh-12102 ⋅ se/space
Could an articulated permanent magnet work as a low-power cubesat magnetotorquer? Problems?8yr ⋅ uhoh-12102 ⋅ se/space
Why would Cassini need to reach 64 degrees inclination before threading the needle?8yr ⋅ uhoh-12102 ⋅ se/space
How can a deep-space spacecraft determine in real time the direction of delta-v?8yr ⋅ uhoh-12102 ⋅ se/space
JPL Horizons original reference orbit data for Juno - how to retrieve now that it's been updated?8yr ⋅ uhoh-12102 ⋅ se/space
Here it comes! 2012 TC4 has been re-acquired and its orbit revised; at over 50 million km, how was this done?7yr ⋅ uhoh-12102 ⋅ se/space
Why does the word Mars shows up in google maps when viewing the Goldstone DSN complex?7yr ⋅ uhoh-12102 ⋅ se/space
How are precision trajectory measurements made of trans-Neptunian spacecraft?8yr ⋅ uhoh-12102 ⋅ se/space
Any known, verified examples of sabotage of a launch vehicle bound for orbit?8yr ⋅ uhoh-12102 ⋅ se/space
Problems compressing the helium tanks inside the F9 2nd stage LOX tank at the last minute?8yr ⋅ uhoh-12102 ⋅ se/space
Asteroid 2013 TX68 March 5, 2016 close approach, and calculating with Skyfield8yr ⋅ uhoh-12102 ⋅ se/space
Besides HST, JWST and stations, are there any examples of satellites designed for service in space?8yr ⋅ uhoh-12102 ⋅ se/space
What is the large structure in the background of this picture of Molniya 1?8yr ⋅ uhoh-12102 ⋅ se/space
How will SES-9 reach geostationary orbit from inclined transfer orbit (from F9 2nd stage)8yr ⋅ uhoh-12102 ⋅ se/space
Cubesat with 8 arcsecond pointing accuracy - is that typical, or exceptional?8yr ⋅ uhoh-12102 ⋅ se/space
Did I see the Formosat-5 F9 2nd stage nozzle vibrate at about 2Hz at SECO-1?7yr ⋅ uhoh-12102 ⋅ se/space
Why are these multi-junction solar cells 40% efficient on earth but 30% in space?8yr ⋅ uhoh-12102 ⋅ se/space
When was the last normal electron tube (valve) for electrical circuitry launched into space?7yr ⋅ uhoh-12102 ⋅ se/space
Is GMAT still available? Where? How? (NASA's General Mission Analysis Tool)8yr ⋅ uhoh-12102 ⋅ se/space
What kind of engine does this Isp = 1600 (actually) refer to? Is it cubesat-friendly?8yr ⋅ uhoh-12102 ⋅ se/space
Have there been any determinations of the water pressure in Europa's ocean just below the ice?8yr ⋅ uhoh-12102 ⋅ se/space
Is the pressurization of propellant tanks necessary for structural integrity?8yr ⋅ uhoh-12102 ⋅ se/space
Why does the side of the LEM look almost black in this photo? Did that cause problems?8yr ⋅ uhoh-12102 ⋅ se/space
Why does DSCOVR's camera EPIC see at least 13 sunrises and sunsets per day?8yr ⋅ uhoh-12102 ⋅ se/space
What is the extra moving and disappearing line in the animation in the BulgariaSat-1 webcast?7yr ⋅ uhoh-12102 ⋅ se/space
How does Exploration Mission 1 orbit differ from Apollo-era free-return? How far from Earth (and Moon) does it go?7yr ⋅ uhoh-12102 ⋅ se/space
How will GOES-R simultaneously point some instruments down at Earth and others sunward?8yr ⋅ uhoh-12102 ⋅ se/space
