Wednesday, October 23, 2013

NASA Shoots Lasers at the Moon to Create Insanely Fast Internet

NASA Shoots Lasers at the Moon to Create Insanely Fast Internet
Wired, 23 October 2013
http://www.wired.com/wiredscience/2013/10/nasa-internet-laser/

Aboard LADEE is the Lunar Laser Communication Demonstration (LLCD), which achieved super-fast download speeds of 622 megabits per second (Mbps) and an upload rate of 20 Mbps. In comparison, the internet at WIRED’s office in San Francisco gets download rates of 75 Mbps and uploads at 50 Mbps. NASA’s typical communications with the moon are about five times slower than what LLCD provided.

Thursday, October 17, 2013

SpaceX Experiments with Restarting Engines on First Stage Descent

Spacex shows pictures of the re-ignition of the rocket engine over the ocean which was a step towards reusable rockets
NextBigFuture, 17 October 2013
http://nextbigfuture.com/2013/10/spacex-shows-pictures-of-re-ignition-of.html

Though not a primary mission objective, SpaceX was also able to initiate two engine relights on the first stage. For the first restart burn, we lit three engines to do a supersonic retro propulsion, which we believe may be the first attempt by any rocket stage. The first restart burn was completed well and enabled the stage to survive reentering the atmosphere in a controlled fashion.

Friday, October 4, 2013

Spectrum Cops Advising Small-satellite Owners of Obligations

Spectrum Cops Advising Small-satellite Owners of Obligations
SpaceNews, 27 September 2013
http://www.spacenews.com/article/satellite-telecom/37411spectrum-cops-advising-small-satellite-owners-of-obligations?_escaped_fragment_=#!

The agency that regulates global wireless frequencies and satellite orbital positions on Sept. 27 warned owners of small satellites that they are not exempt from the rules that bind the rest of the satellite industry.

PocketQubes: Even Smaller Than a CubeSat

PocketQubes: Even Smaller Than a CubeSat
Hackaday, 2 October 2013
http://hackaday.com/2013/10/02/pocketqubes-even-smaller-than-a-cubesat/

PocketQubes are a new design of satellite that bring the cost of personal satellites down to what Universities and amateur radio enthusiasts can actually afford. Instead of spending $125k on a 10cm cube CubeSat, the PocketQube, a 5cm cube, can be launched to a 700 km orbit for about $20,000.