April 2017
Sky-fi dawn of the space internet era
... data, allowing connectivity even under narrow bandwidth conditions. A combination of platforms at different altitudes using GEO and LEO satellites, planes and cellular towers. Recently, Facebook also partnered with Paris-based Eutelsat to lease the...
August 2017
On-orbit assembly will deliver major benefits in coming decade
...protective shell structure in orbit, in which assembly can proceed free from many of these environmental concerns. For LEO operations, there is also the continual significant variation in the lighting environment caused by going in and out of eclipse...
April 2019
Cleaning up space
... inevitably lead to more debris. In order to mitigate potential future debris, we propose that all satellites in mid- to high-LEO be pre-engineered with a lightweight docking plate to facilitate eventual removal from orbit. The primary focus of this...
July 2019
Next steps in human space exploration
...that are perfectly capable of providing transportation to and from LEO. NASA contracted for services with the likes of Orbital ATK...sense to hand-off the operation and sustainment of LEO to the commercial and entrepreneurial sector, while agencies like...
July 2014
The hypersonic grail: advances at DARPA, AFRL and beyond
... system that would allow transit to low-Earth orbit (LEO) more routinely, affordably, and safely than possible today.... deliver hypersonic weapons. Today the cost of launching payload to LEO is approximately $20,000 per kg. This high cost limits space ...
December 2014
Asteroid Redirect Mission: preparing for Mars in deep space
...a number of new space technologies to extend human spaceflight beyond LEO. One of these is the use of advanced solar electric ...has several examples of crewed-robotic vehicle interaction in LEO, such as the Space Shuttle Hubble repair missions...
