London researchers to help with search for life on Mars

Photo of Mars, as seen by the Hubble Space Telescope. A close encounter of the Martian kind was due to occur Wednesday June 13 2001, and could trigger a flood of UFO reports. Mars was heading towards its closest approach to Earth in more than a dozen years.
Mars as seen by the Hubble Space Telescope Credit: NASA Planetary Photojournal/PA

Rock and soil samples taken from Mars in the search for life on the Red Planet are to be selected by London researchers.

Scientists at Imperial College London and the Natural History Museum will help the Nasa Perseverance rover select the Martian samples to be brought back to Earth, as it searches for evidence of ancient microbial life. The mission to Mars is set to launch on Thursday.

Jezero crater, the 28-mile wide destination of Perseverance, contains sediments of an ancient river delta, a location where evidence of past life could be preserved if it ever existed on the planet.

Professor Sanjeev Gupta, from Imperial, will help Nasa oversee mission operations from a science and engineering point of view.

Professor Mark Sephton, also from Imperial, will help identify samples of Mars that could contain evidence of past life.

Professor Caroline Smith, from the Natural History Museum, will study the mineralogy and geochemistry of the different rocks found in the crater.

Dr Keyron Hickman-Lewis, who is preparing to join the museum, will study the palaeoenvironments of sedimentary horizons exposed in Jezero crater and the potential for signatures of ancient microbial life preserved within.

Nasa’s Perseverance rover and the recently launched UAE Hope mission will blaze a trail ahead of the launch of the UK-built Rosalind Franklin rover, due to blast into space in 2022.

The Rosalind Franklin rover, which was built by Airbus in Stevenage, Hertfordshire, will be able to drill 6.5ft below the surface, gathering samples from regions not affected by radiation.

  • Perseverance will carry instruments geared to search for the carbon building blocks of life and other microbes and to reconstruct the geological history of the Red Planet

  • The instruments will analyse samples from the surface, with selected samples collected by drilling down to 2.8in and then sealed in special tubes and stored on the rover

  • When the rover reaches a suitable location, it will drop the tubes on the surface of Mars to be collected by a future retrieval mission, which is currently being developed

The Sample Fetch rover, being developed by Airbus, will collect the samples and take them to the Nasa Mars Ascent vehicle.

Nasa and European Space Agency scientists are planning how the samples will be curated on their return.

The rover also carries the Ingenuity Mars helicopter, which will fly short distances and marks the first attempt at powered, controlled flight on another planet.

If the test of the helicopter is successful, it could lead to more flying probes on other planets.

Perseverance will also trial technologies to help astronauts make future expeditions to Mars.

This includes testing a method for producing oxygen from the Martian atmosphere, and identifying other resources such as subsurface water.

Sue Horne, head of space exploration at the UK Space Agency, said: “It is amazing that we are undertaking the first step of a sequence of missions to collect samples from Mars and return them to Earth.”