Last year, Darpa launched a program, Phoenix, to harvest satellite parts. Now, the agency’s convening with researchers and already looking for a prime sat candidate to pick apart. Illustration: Darpa
The Pentagon’s intergalactic black-magic plot is getting ready to raise the dead.
Dead satellites, that is. Last year, Darpa, the military’s blue-sky research agency, kicked off a program designed to harvest parts from unused communications satellites still orbiting the Earth, and then turn those bits and pieces — antennas in particular — into an array that operates as a low-cost “communications farm” for troops on the ground.
Now that program, called Phoenix, is entering a new phase. First, Darpa last week issued a bid to commercial satellite owners, asking for “a candidate satellite” that’ll act as a space-based guinea pig for initial evaluations of the technology requisite for the initiative. And today, the agency hosted a conference on “sustainable satellite servicing” — attended by academics, private companies and military experts — to discuss everything from the program’s regulatory challenges to more technical “operational considerations” necessary to revive dead satellites.
Once fully realized, Darpa envisions the Phoenix program, which the agency wants to fully demonstrate by 2015, working something like this. First, a servicing satellite — complete with mechanical arms and other “unique tools” designed specifically for the program — would be launched into geosynchronous orbit (GEO). After that, the agency wants to launch an array of what they call “satlets” — wee, bare-bones satellites — to meet up with, and be stored by, the program’s primary satellite.
From there, the satellite posse would transfer to what’s known as GEO’s “graveyard” orbit — where non-functioning satellites linger — and start picking off antennas and other useful parts. Once an antenna is removed from its former satellite, it would be affixed to a satlet, which’d act as a controller to move the antenna into position as part of a zombified array of recycled satellite parts.
The program is “definitely ambitious, and some might call it crazy,” according to Brian Weeden, a former officer with the U.S. Air Force Space Command who moderated a panel at today’s event. First, there are a host of technical hurdles for the agency to overcome. Even if they do, Darpa will also need to address “regulatory challenges” before Phoenix can get up and running, Weeden emails Danger Room.
On a technical level, the agency needs to develop new robotic tools capable of delicate, highly specific satellite work — namely, pulling apart satellites without damaging key parts — in space. Such “intensive robotic operations [...] nearly 37,000 km away, will likely require a level of autonomy not seen before,” Weeden notes. And Darpa’s plan to use satlets to transform antennas into functional space vessels is also treading untested waters. “To my knowledge,” Weeden writes, “this is something that has never been done before.”