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Satellite


— Space

B612 Foundation highlights the risk of city-destroying asteroids

By - April 23, 2014 4 Pictures
The California-based B612 Foundation has released a video displaying the distribution of 26 multi-kiloton asteroid impacts known to have struck the Earth since the year 2000. Many of the impacts – detected by a network of satellites operated by the Nuclear Test Ban Treaty Organization – exploded with a force greater than that of the city-leveling bomb dropped on Hiroshima, which had an explosive yield of 15 kilotons. Read More
— Aircraft

StratoBus seeks to occupy the midpoint between airship and satellite

By - March 27, 2014 1 Picture
Satellites may be very useful for communications, navigation and other applications, but they're awfully expensive to build and launch, and once they're in orbit ... well, there's no reusing them. That's why a consortium led by Thales Alenia Space is developing the StratoBus. It's a planned autonomous airship that can be launched like a regular blimp, but that will be able to hover at an altitude of 20 km (12 miles) – that's up in the stratosphere, hence the name. Read More
— Space

Lockheed-Martin introduces 100 percent refund or refly program for ATLAS payloads

By - March 17, 2014 3 Pictures
Lockheed-Martin (LM) has a problem. Their Atlas V orbital launch system, while very popular with the US military, at around US$225M per launch is too expensive to compete effectively for commercial missions, whose launch costs are generally about half that amount. As part of an effort to reposition their services, LM is now offering a 100 percent money-back or reflight guarantee if the launch vehicle causes mission failure. The guarantee covers the cost of the vehicle launch, but not the cost of the satellite. Read More
— Space

SPHERES remote control demonstration bodes well for future space exploration

By - March 13, 2014 1 Picture
Controlling a robot in space from the ground can be a bit like hitting a moving target. There’s a one to three second delay as data passes back and forth between the robot and ground control, which means that operators have to anticipate how the robots will move during these delays. This week, the Lockheed Martin Advanced Technology Center (ATC) announced the first-ever demonstration of collaborative tele-operations that involved control of robots on the International Space Station (ISS) by astronauts on the ISS and operators on the ground. Read More
— Space

New SARAS system speeds up satellite tracking

By - March 10, 2014 2 Pictures
As you might expect, acquiring a signal from a satellite traveling at speeds of over 17,400 mph can be a tricky business. A new system called SARAS, which is a Spanish acronym for "Fast Acquisition of Satellites and Launchers," more than doubles the effective area of the receiving dish antenna, allowing the signal to be acquired much faster. Read More
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