'On our way to Mars': NASA rover will look for signs of life

NASA launches Mars rover to look for signs of ancient life
A United Launch Alliance Atlas V rocket lifts off from pad 41 at the Cape Canaveral Air Force Station Thursday, July 30, 2020, in Cape Canaveral, Fla. The mission will send a Mars rover to the Red Planet to search for signs of life, explore the planet's geology and much more. (AP Photo/John Raoux)

The biggest, most sophisticated Mars rover ever built—a car-size vehicle bristling with cameras, microphones, drills and lasers—blasted off for the red planet Thursday as part of an ambitious, long-range project to bring the first Martian rock samples back to Earth to be analyzed for evidence of ancient life.

NASA's Perseverance rode a mighty Atlas V rocket into a clear morning sky in the world's third and final Mars launch of the summer. China and the United Arab Emirates got a head start last week, but all three missions should reach their destination in February after a journey of seven months and 300 million miles (480 million kilometers).

The plutonium-powered, six-wheeled rover will drill down and collect tiny geological specimens that will be brought home in about 2031 in a sort of interplanetary relay race involving multiple spacecraft and countries. The overall cost: more than $8 billion.

NASA's science mission chief, Thomas Zurbuchen, pronounced the launch the start of "humanity's first round trip to another planet."

"Oh, I loved it, punching a hole in the sky, right? Getting off the cosmic shore of our Earth, wading out there in the cosmic ocean," he said. "Every time, it gets me."

In addition to potentially answering one of the most profound questions of science, religion and philosophy—Is there or has there ever been life beyond Earth?—the mission will yield lessons that could pave the way for the arrival of astronauts as early as the 2030s.

NASA launches Mars rover to look for signs of ancient life
A United Launch Alliance Atlas V rocket lifts off from pad 41 at the Cape Canaveral Air Force Station Thursday, July 30, 2020, in Cape Canaveral, Fla. The mission will send a Mars rover to the Red Planet to search for signs of life, explore the planet's geology and much more. (AP Photo/John Raoux)

"There's a reason we call the robot Perseverance. Because going to Mars is hard," NASA Administrator Jim Bridenstine said just before liftoff. "In this case, it's harder than ever before because we're doing it in the midst of a pandemic."

Shortly after liftoff, Perseverance unexpectedly went into safe mode, a sort of protective hibernation, after a temperature reading triggered an alarm. But deputy project manager Matt Wallace later said that the spacecraft appeared to be in good shape, with its temperatures back within proper limits, and that NASA will probably switch it back to its normal cruise state within a day or so.

"Everything is pointing toward a healthy spacecraft ready to go to Mars and do its mission," he said.

NASA's deep-space tracking stations also had some difficulty locking onto signals from Perseverance early in the flight but eventually established a solid communication link, Wallace said.

NASA launches Mars rover to look for signs of ancient life
A United Launch Alliance Atlas V rocket lifts off from pad 41 at the Cape Canaveral Air Force Station Thursday, July 30, 2020, in Cape Canaveral, Fla. The mission will send a Mars rover to the Red Planet to search for signs of life, explore the planet's geology and much more. (AP Photo/John Raoux)

The U.S., the only country to safely put a spacecraft on Mars, is seeking its ninth successful landing on the planet, which has proved to be the Bermuda Triangle of space exploration, with more than half of the world's missions there burning up, crashing or otherwise ending in failure.

China is sending both a rover an orbiter. The UAE, a newcomer to outer space, has an orbiter en route.

It's the biggest stampede to Mars in spacefaring history. The opportunity to fly between Earth and Mars comes around only once every 26 months when the planets are on the same side of the sun and about as close as they can get.

The launch went off on time at 7:50 a.m. despite a 4.2-magnitude earthquake 20 minutes before liftoff that shook NASA's Jet Propulsion Laboratory in Southern California, which is overseeing the rover.

NASA launches Mars rover to look for signs of ancient life
This photo provided by NASA, a United Launch Alliance Atlas V rocket launches at Space Launch Complex 41 at the Cape Canaveral Air Force Station, Thursday, July 30, 2020, in Cape Canaveral, Fla. NASA's Perseverance blasted off atop an Atlas V rocket Thursday morning. It's the first step in an ambitious project to bring the first Martian rock samples back to Earth to be analyzed for evidence of ancient life. (Joel Kowsky/NASA via AP)

Launch controllers at Cape Canaveral wore masks and sat spaced apart because of the coronavirus outbreak, which kept hundreds of scientists and other team members away from Perseverance's liftoff.

"That was overwhelming. Overall, just wow!" said Alex Mather, the 13-year-old Virginia schoolboy who proposed the name Perseverance in a NASA competition and watched the launch in person with his parents.

About an hour into the flight, controllers applauded, pumped their fists, exchanged air hugs and pantomimed high-fives when the rocket left Earth's orbit and began hurtling toward Mars.

"We have left the building. We are on our way to Mars," Perseverance's chief engineer, Adam Steltzner, said from JPL.

If all goes well, the rover will descend to the Martian surface on Feb. 18, 2021, in what NASA calls seven minutes of terror, during which the craft will go from 12,000 mph (19,300 kph) to a complete stop. It is carrying 25 cameras and a pair of microphones that will enable Earthlings to vicariously tag along.

NASA launches Mars rover to look for signs of ancient life
A replica of the Mars rover Perseverance is displayed outside the press site before a news conference at the Kennedy Space Center Wednesday, July 29, 2020, in Cape Canaveral, Fla. United Launch Alliance Atlas V rocket launch scheduled for tomorrow will transport the rover to Mars. (AP Photo/John Raoux)

Perseverance will aim for Jezero Crater, a treacherous, unexplored expanse of boulders, cliffs, dunes and possibly rocks bearing the chemical signature of microbes from what was a lake more than 3 billion years ago. The rover will store half-ounce (15-gram) rock samples in dozens of super-sterilized titanium tubes.

It also will release a mini helicopter that will attempt the first powered flight on another planet, and test out other technology to prepare the way for future astronauts. That includes equipment for extracting oxygen from Mars' thin carbon-dioxide atmosphere.

The plan is for NASA and the European Space Agency to launch a dune buggy in 2026 to fetch the rock samples, plus a rocket ship that will put the specimens into orbit around Mars. Then another spacecraft will capture the orbiting samples and bring them home.

  • NASA launches Mars rover to look for signs of ancient life
    This photo provided by NASA, a United Launch Alliance Atlas V rocket launches at Space Launch Complex 41 at the Cape Canaveral Air Force Station, Thursday, July 30, 2020, in Cape Canaveral, Fla. NASA's Perseverance blasted off atop an Atlas V rocket Thursday morning. It's the first step in an ambitious project to bring the first Martian rock samples back to Earth to be analyzed for evidence of ancient life. (Joel Kowsky/NASA via AP)
  • NASA launches Mars rover to look for signs of ancient life
    A United Launch Alliance Atlas V rocket that will launch to Mars arrives at Space Launch Complex 41 at the Cape Canaveral Air Force Station, Tuesday, July 28, 2020, in Cape Canaveral, Fla. The rocket scheduled to launch on Thursday will land on Mars in February 2021 and the Mars 2020 rover, named Perseverance, will study Martian geology. (AP Photo/John Raoux)
  • NASA launches Mars rover to look for signs of ancient life
    A United Launch Alliance Atlas V rocket lifts off from pad 41 at the Cape Canaveral Air Force Station Thursday, July 30, 2020, in Cape Canaveral, Fla. The mission will send a Mars rover to the Red Planet to search for signs of life, explore the planet's geology and much more. (AP Photo/John Raoux)
  • NASA launches Mars rover to look for signs of ancient life
    Alexander Mather, of Burke, Va. stands next to a model of the Mars 2020 rover he named in a contest during a news conference at the Kennedy Space Center Tuesday, July 28, 2020, in Cape Canaveral, Fla. Mather, submitted the winning entry in NASA's "Name the Rover" essay contest, making the case to name the Mars 2020 rover "Perseverance." (AP Photo/John Raoux)

Samples taken straight from Mars, not drawn from meteorites discovered on Earth, have long been considered "the Holy Grail of Mars science," according to NASA's now-retired Mars czar, Scott Hubbard.

To definitively answer the life-beyond-Earth question, the samples must be analyzed by the best electron microscopes and other instruments, far too big to fit on a spacecraft, he said.

"I've wanted to know if there was life elsewhere in the universe since I was 9 years old. That was more than 60 years ago," Hubbard said from his Northern California cabin. "But just maybe, I'll live to see the fingerprints of life come back from Mars in one of those rock samples."


Explore further

2020's final Mars mission poised for blastoff from Florida

© 2020 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.

Citation: 'On our way to Mars': NASA rover will look for signs of life (2020, July 30) retrieved 4 August 2020 from https://phys.org/news/2020-07-nasa-mars-rover-ancient-life.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
3286 shares

Feedback to editors

User comments