Back to Venus: Rocket Lab looks to beat NASA in search for life on Venus, other worlds

Rocket Lab will need help from leading scientists, and has already recruited MIT astronomer and planetary scientist Sara Seager.

Agence France-Presse September 28, 2020 11:32:58 IST
Back to Venus: Rocket Lab looks to beat NASA in search for life on Venus, other worlds

Venus. Image Credit: PLANET-C/JAXA

Can a small US aerospace company get to Venus before NASA returns to our superheated planetary neighbor?

That's what Peter Beck,  CEO of Rocket Lab, is hoping as he sets his sights on launching a low-cost probe in 2023.

Over the past decade his company has become very good at putting satellites into orbit – and his dream of taking the next step – an interplanetary mission – has received a shot of adrenaline recently with the surprising discovery of a gas linked to living organisms in Venus's corrosive, sulfuric atmosphere.

"What we're looking for on Mars is signs of previous life," Beck explains.

"Whereas Venus, it's signs of potential life now."

With its hellish landscape, Venus has been largely neglected by the major space agencies since the 1980s in favor of the Solar System's more distant bodies.

Dozens of missions have notably been sent to Mars seeking signs of ancient microbes. But the discovery by Earth-based radio telescopes of a gas called phosphine in Venus' atmosphere, reported on September 14, sparked a new wave of enthusiasm among scientists who had for years defended the hypothesis that tiny organisms could live in the planet's clouds.

Also Read: Phosphine found in the Venus atmosphere, could be signs of 'aerial life' in planet's clouds

Back to Venus Rocket Lab looks to beat NASA in search for life on Venus other worlds

Venus. Image Credit: PLANET-C/JAXA

Phosphine is not definitive proof of life. But it is possible that its presence is linked to living organisms, as it is on our planet. The finding led NASA to declare it was time to once more prioritize Venus. Beck has always been in the pro-Venus camp, and for two years has been contemplating sending an entirely privately funded probe there, he said. He calculated that a small satellite called "Photon" that Rocket Lab developed in-house could be adapted into a spacecraft for an interplanetary voyage. Such bids have historically been the domain of national space agencies, given the enormous costs involved – but Beck thinks he has developed a budget solution.

"I would expect a mission to Venus to be sort of $30 million," he told AFP by video from Auckland, New Zealand.

"When you can measure interplanetary missions in tens of millions of dollars instead of billions, and months instead of decades, the opportunity for discovery is just incredible," he said.

Rocket Lab's speciality is sending small satellites into Earth orbit with its small 18-meter-high rocket - a highly lucrative market in recent years as demand for microsatellites has exploded.

The company's Venus probe will be very small, weighing around 37 kilograms and just 30 centimetres in diameter.

The trip from Earth will take 160 days, then Photon will launch the probe into Venus' clouds, where it will take readings as it falls, without a parachute, at almost 11 kilometres per second. The probe will have between just 270 and 300 seconds to analyse an atmosphere that is almost a hundred times denser than Earth's before it disintegrates or crashes on the planet's fiery surface, where temperatures are hot enough to melt lead 480 C.

The hardest part is deciding on the scientific instrument: What molecules should it look for?

Miniaturization is another problem. The probe will need to weigh three kilograms, which some experts doubt is possible, but Beck disagrees. Rocket Lab will need help from leading scientists, and has already recruited MIT astronomer and planetary scientist Sara Seager.

The adventure is the latest chapter in a new era of space exploration.

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