Inside Nasa’s hunt for alien life orbiting Saturn as scientist says it will be ‘a success’


NASA has unveiled a new project designed to search for signs of life on other planets.

JPL scientists have developed a series of instruments dubbed the Ocean Worlds Life Surveyor (OWLS).


NASA has unveiled a new project designed to search for signs of life on other planetsCredit: Getty – Contributor

OWLS have one purpose: to identify and characterize life on ocean worlds.

Some ocean worlds of particular interest include the Jovian moons Europa and Ganymede, and Saturn’s moons Enceladus and Titan.

The dwarf planet Ceres, which is the largest object in the asteroid belt between Mars and Jupiter, is also a prime candidate.

NASA looks at these bodies because of their aquatic and icy environments, which resemble those of Earth at times in its history.

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How will this work?

Nasa noted that first a water sample is taken from an alien world.

Next, OWLS works to identify evidence of life at the molecular and cellular levels.

To do this, he combines chemical analysis with high-resolution microscopy.

“The chemical analysis system uses separation science coupled with multiple detection modes, including mass spectrometry,” NASA explained.

“These modes provide a wide range and very sensitive characterization of potential biomolecules in a collected sample.”

Meanwhile, microscopy methods use both holographic and bright-field techniques to enable high-resolution, fluorescent imaging of large sample volumes.

Nasa said OWLS that operate on remote ocean worlds will need to be able to send any evidence of life with minimal data volume.

“To achieve 1000x data reduction, the instrument suite relies on science autonomy algorithms that summarize and prioritize on-board data, ensuring the most compelling evidence is delivered to scientists first,” explained the American space agency.

Scientists predict that if all goes well, we could have data in less than about 15 years.

Multi-purpose technology

The same technology can even be used on Earth, to help monitor water pollution.

“I think over time this will be one of those NASA success stories where we’ve come up with something for a very specific extraterrestrial-type application and found many applications here on Earth as well,” Peter said, Co-Principal Investigator and Chief Scientist of OWLS. Willis told The Daily Beast.

In fact, the technology has already been requested by the International Space Station (ISS) to help monitor their drinking water.


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