Martian Cubesats to Broadcast Mars Landing

Nov. 25, 2018: For the first time ever, cubesats are approaching Mars. Their mission: To experience 7 minutes of terror. If all goes as planned, on Monday the two tiny spacecraft will watch NASA’s InSight lander touchdown on the Red Planet, relaying updates to Earth in near-real time.

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InSight is the latest NASA probe to land on Mars–or disintegrate in the attempt. On Nov. 26th, it will tear through the planet’s atmosphere in a fireball, shedding more than 12,000 mph of velocity in just under 7 minutes. NASA hopes InSight will touchdown gently on the plains of Elysium Planitia where it can drill into Mars, using seismometers, heat flow sensors, and radios to study the planet’s interior.

Officially the two cubesats are known as MarCO-A and MarCO-B, but JPL engineers have nicknamed them “WALL-E” and “Eva.” They were launched alongside the lander on May 5, 2018. Mission controllers weren’t even sure the tiny spacecraft would survive the journey across interplanetary space–but they did. Now they will act as radio relay stations. Instead of waiting several hours for InSight to report back to Earth, WALL-E and Eva will relay entry, descent and landing data much sooner. This is the first time cubesats have traveled beyond Earth orbit, so it will be a significant achievement if they succeed.

NASA will broadcast the landing on NASA TV starting at 2 p.m. EST on Monday, Nov. 26th. Tune in here.

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