Astronaut controls robot on Earth from the ISS

Astronauts and robots are expected to work more closely together in future lunar and planetary exploration

NASA's K10 rover is seen during a test at the NASA Ames Roverscape on July 26, 2013

NASA's K10 rover is seen during a test at the NASA Ames Roverscape on July 26, 2013

An astronaut aboard the International Space Station has used an extraterrestrial remote control system to manoeuvre a robot rover at NASA's Ames Research Centre in Silicon Valley.

In the test, Italian astronaut Luca Parmitano used the rover to deploy a simulated radio telescope antenna on the Ames Roverscape, a sandy and rocky simulation of the lunar landscape that's about the size of a football field.

Parmitano was controlling the rover from a Java application running on a Lenovo ThinkPad on the ISS. The rover, a four-wheeled robot called a K10, steadily moved around the Roverscape as it was commanded during the test. A team of NASA scientists kept watch on the test at Ames, but it was Parmitano in control all the time, they said.

"Our goal here really, overall, is to understand how humans and robots can really work well together," said Terry Fong, telerobotics program manager at NASA Ames. "And not just any kind of robot, we're really interested in remotely operated robots. In particular, we're looking at how can we use these robots to improve the way humans can live and work in space."

The test, one of a series, points to NASA's latest thinking about lunar and planetary exploration. Whereas the Apollo astronauts did everything themselves and the Mars Rover has done its work autonomously, NASA is looking to a future where astronauts control nearby robots to carry out tasks.

That can't be done easily from Earth because of the long time it takes for radio signals to travel the vast distance to neighboring planets. In the case of Mars, there's an eight-minute delay before a signal reaches the planet, and then an eight-minute return time for a confirmation signal.

So while Friday's test had an ISS astronaut controlling a rover in Silicon Valley, it simulated a future lunar mission with a spacecraft in an orbit between the moon and Earth.

"We've chosen a mission scenario that involves taking a robot to the far side of the moon and deploying a radio telescope to observe the early history of the universe, the so-called cosmic dawn," Fong said.

Scientists are eyeing the moon's far side as a location for a future radio telescope because the moon itself shields the location from radio interference being emitted from Earth. Radio and communications transmitters continuously blast out signals on the frequencies of interest to radio astronomers, so finding a spot with little radio noise is a challenge. After the moon, they estimate the next best location for low radio noise is beyond Jupiter.

In the test, the simulated radio telescope antenna was made of a thin, plastic film that was stored on a roll inside the rover's body. The rover drove to a pre-determined point and one end of the film would drop from the back. It then moved forward, unrolling the antenna onto the ground behind it as it drove.

"The future is going to be an astronaut or a series of astronauts in control of a fleet of rovers, either if you're on the surface of a planetary body like the moon or Mars or from orbit," said Jack Burns, a professor at the University of Colorado and director of the lunar university network for astrophysics research.

Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is martyn_williams@idg.com

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Martyn Williams

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