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NASA's 'Flying Saucer' Test For Advanced Parachute Appears To Fail

An image from NASA shows its Low-Density Supersonic Decelerator after launch Monday.

It's a big day for NASA: The agency's new "flying saucer" is getting a crucial test, part of a plan to land on Mars someday. A giant balloon is carrying the Low-Density Supersonic Decelerator to an altitude of 120,000 feet. Then it'll go even higher — and engineers hope its parachute guides it safely to Earth's surface.

You can watch NASA TV online to follow events live. "Drop time" — when the saucer's rocket will be ignited — is slated for 5:35 p.m. ET.

Update 6:02 p.m. ET:

The LDSD's parachute, the largest ever tested, appeared to rip apart after being deployed during Monday's test. In a tweet, the agency reported that the chute did not inflate correctly.

The supersonic parachute, which NASA reported was nearly the length of a Boeing 747, could be used in future missions to Mars, assuming the agency can get it working correctly. Another test run is scheduled for next year.

NASA ended its live coverage prior to the LDSD's splashdown, but ships are expected to recover the saucer and parachute today and bring it back to land by tomorrow, when the space agency will hold a press conference on the project.

Update at 5:05 p.m. ET: Rocket Burn 'Around 30 Minutes' Away

NASA TV has resumed its live coverage of the test, and with the craft having reached 120,000 feet, the announcers say its main rocket should be ignited sometime after 5:30 p.m.

"The #LDSD test vehicle is powering up for drop, including the GoPros, sensors and main avionics," NASA Technology says.

Our original post continues:

Once it reaches float altitude, the LDSD will act like very much like you would expect a flying saucer to behave: It will spin. Then a main rocket will send it up even higher and much faster — to 180,000 feet, and moving at more than four times the speed of sound.

The high altitude is a crucial part of the test, as it's seen as the best way to simulate Mars' thin atmosphere. A similar test of the 7,000-pound craft's landing systems went well last summer — until the parachute failed and the unit plummeted toward the ocean.

Both the parachute and the LDSD's shape are meant to help it slow down enough to safely land both equipment and humans on another planet.

Last June, Daniel Lockney, NASA's technology transfer program executive, told NPR about the thinking behind the LDSD:

"You need to slow down the spacecraft before you can gently land it onto the surface. You know, you don't want to go careening into the surface of Mars after spending all that time to get there.

"Typically, we've been using the technology — a parachute technology that we developed during Viking Lander era. And it's the same thing that we used to get Curiosity to slow down in 2012 for that landing.

"And the idea is that we would have larger, heavier spacecraft that need newer technologies — more advanced technologies to help slow them down. So instead of a parachute, it's kind of a long — almost like a blob — that's a flying saucer that will slow down the spacecraft before it reaches the atmosphere."

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