The gestation period for NASA’s $2.5-billion baby is flying by.

The Mars 2020 mission rover under construction behind the “clean room” doors of the Jet Propulsion Laboratory in La Cañada Flintridge is set to launch from the Kennedy Space Center in July.

With the latest rover almost ready to explore the possibility of life on the Red Planet, more than 50 journalists from around the world donned protective suits, hoods and booties Friday, Dec. 27 to check it out.

Domestic and foreign reporters alike swabbed their recording instruments with isopropyl alcohol in preparation to see the to see the vehicle, which measures 7 feet high, 9 feet wide and 10 feet long, and to interview its creators before its transfer to Florida in late January.

Detail of Nasa’s Mars 2020 rover at the Jet Propulsion Laboratory Spacecraft Assembly Facility clean room, in La Cañada Flintridge on Friday, Dec. 27. The rover was constructed in the clean room and is undergoing final testing. The rover, its rocket-powered descent stage and the mission’s cruise stage was on display. (Raul Roa/La Cañada Valley Sun)

According to Ben Riggs, a mechanical engineer working on the rover, the vehicle will remain quarantined throughout its shipping process to Cape Canaveral, through its launch until its arrival on a planet scientists theorize may have hosted life.

“It’s always encased,” Riggs said. “When the vehicle gets moved, it gets on a flat truck bed that’s been specially modified to handle the vehicle. It’s normally stowed a little bit more compact and effectively double bagged.”

JPL’s team of scientists and engineers take great measures each day during research and construction to protect the rover from any organic particulates — human hair, skin, etc. — to ensure that its findings are credible.

“We don’t want to bring any earth microbes or have any elements on the vehicle that give us false science returns,” Riggs said. “We want to make sure that when we’re caching those samples that they’re pristine and from Mars.”

Jessica Samuels, Jet Propulsion Laboratory’s Mars 2020 lead flight system systems engineer, talks about NASA’s next spacecraft headed to the Red Planet at the Spacecraft Assembly Facility clean room. The rover was constructed in the clean room and is undergoing final testing. The rover, its rocket-powered descent stage and the mission’s cruise stage was on display. (Raul Roa/La Cañada Valley Sun)

The design for the Mars 2020 mission was conceived in the Foothills in 2011. The rover will remain in an entirely controlled environment through its departure into the solar system until it arrives and is released into Jezero Crater, a river delta on Mars, in early 2021.

Like many river deltas on Earth, including the one at the base of the San Gabriel Mountains just east of JPL, Jezero Crater is a geological depository that will offer an array of samples to test, Riggs said.

Unlike river deltas on earth, however, Jezero Crater is an ancient land form, active three or four billion years ago, said planetary geologist Emily Lakdawalla.

“It was later buried, and the wind has taken away a lot of the sediment that was there before, so it’s been exhumed, like one would exhume a body,” Lakdawalla said.

“The cool thing about it is that it’s been unburied at different levels so the Rover is going to be able to drive up to various locations inside the delta and be able to see it from the inside.”

The rocket-powered descent stage will carry the Mars 2020 rover underneath. (Raul Roa/La Cañada Valley Sun)

As the rover descends into Mars’ atmosphere, the “flying gas can” slows from 200 mph to 2 mph in less than a minute via eight Mars Lander engines that produce 700 pounds of thrust apiece and a parachute, said Ray Baker, the flight systems manager for this mission. The last step of the rover’s deposit is severing the three nylon ropes that connect the rover to its transport, known as “umbilical bridles.”

Baker, who also helped send the Curiosity rover to Mars in 2011, said he hopes that the work he has done for this mission lays the groundwork for future scientists and engineers — including his daughter and son who attend Paradise Canyon Elementary school in La Cañada.

“We used to say the sky is the limit. For them, the solar system isn’t even the limit. It’s normal for them that we’re going and exploring this other planet, and they’re thinking beyond that. It’s exciting to me that their imaginations think it’s possible to do something even greater than what we’re trying to do today,” Baker said.

Mechanical engineer Zach Ousnamer said he and his team used pieces of technology created by labs all over the world to create the Mars 2020 mission, a rover with an unprecedented scientific payload.

“[Finding life on another planet] would be a global architectural shift in kind of the next big thing, it doesn’t really get bigger than that,” Ousnamer said.

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