Mars 'hopper': Space scientists develop new breed of space vehicle

Nov 18, 2010
This is a screenshot from a simulation showing an 85-hop mission segment on Mars (145 km total traverse with one week between hops). Credit: Hugo Williams, Richard Ambrosi and Nigel Bannister, University of Leicester.

Scientists and engineers at the internationally acclaimed Space Research Centre at the University of Leicester are developing a conceptual motor design for a Mars 'hopping' vehicle which should lead to a greater understanding of the 'Red Planet'.

Their research findings have been published this month by the .

Robots exploring Mars can carry scientific instruments that measure the physical and chemical characteristics of the and subsurface, analyse the environment and look for evidence of past or present life. Wheeled rovers have made extraordinary discoveries despite only exploring a small fraction of the planet.

This video is not supported by your browser at this time.
A video illustrating the concept of the Mars vehicle

The research has an international flavour. The University of Leicester has been working with a number of collaborators including Astrium Ltd in the UK and Center for Nuclear Research, Idaho, USA. The focus in the UK has been the development of a large-scale (400 kg) Mars Hopper concept that can fly in 1km 'hops'. This is an exciting concept that should be considered further as a complement to rover and orbital missions.

The Hopper can collect fuel between hops by compressing gas from the Martian atmosphere and can fly quickly between sites, powered by a long-life radioisotope power source. It could therefore study hundreds of locations over a lifetime of several years.

The Leicester research focused on the , looking at its size and materials.

This is a screenshot from a simulation showing an 85-hop mission segment on Mars (145 km total traverse with one week between hops). Credit: Hugo Williams, Richard Ambrosi and Nigel Bannister, University of Leicester.

Dr Richard Ambrosi, at the Leicester Space Research Centre, commented:

"The improved mobility and range of a hopping vehicle will tell us more about the evolution of Mars and of the Solar System and may answer questions as to whether there was life in the past, whether was wetter in the past and if so where that water went."

Dr Nigel Bannister added: "The Hopper is different from other rovers because of its power source. In one mode the heat source generates electric power to drive a compressor to gather the carbon dioxide propellant from the . The heat source then stores thermal energy and injects it into the propellant, which is accelerated out of a rocket nozzle to provide thrust."

Dr Hugo Williams said: "At Leicester we have concentrated on the motor and design features which translate into the performance of the vehicle.

"Our findings have resulted in a hop range of 1km, for a relatively large vehicle with a large suite of on board. We also looked at the geometry and the best materials for the motor core.

This is a screenshot from a simulation showing an 85-hop mission segment on Mars (145 km total traverse with one week between hops). Credit: Hugo Williams, Richard Ambrosi and Nigel Bannister, University of Leicester

"Our interest in the materials aspect is particularly relevant because we are also engaged in collaborative research with our colleagues in Materials Engineering here at Leicester, and Queen Mary University of London to explore how material properties of materials for use in the space nuclear systems of the future can be enhanced through novel processing and manufacturing techniques."

This video is not supported by your browser at this time.


Explore further: Computer simulation suggests early Earth bombarded by asteroids and comets

More information: http://rspa.royalsocietypublishing.org/content/early/2010/11/11/rspa.2010.0438.short?rss=1

Related Stories

ExoMars: European robotic mission to Mars

Jun 02, 2010

A development model of the Mars Rover, called Bridget, was on display at the University of Leicester today providing invited schoolchildren as well as staff and students with an exciting glimpse into the shape ...

On a roll: Designing the next rover to explore Mars

Jun 02, 2010

The concept of a wind-powered vehicle that can be used to explore the surface of Mars - a so-called "tumbleweed rover" that would roll over the surface of Mars like a tumbleweed - has been around for more ...

Recommended for you

Exploring Mars in low Earth orbit

12 hours ago

In their quest to understand life's potential beyond Earth, astrobiologists study how organisms might survive in numerous environments, from the surface of Mars to the ice-covered oceans of Jupiter's moon, ...

Lifetime of gravity measurements heralds new beginning

14 hours ago

Although ESA's GOCE satellite is no more, all of the measurements it gathered during its life skirting the fringes our atmosphere, including the very last as it drifted slowly back to Earth, have been drawn ...

NASA's IceCube no longer on ice

18 hours ago

NASA's Science Mission Directorate (SMD) has chosen a team at NASA's Goddard Space Flight Center in Greenbelt, Maryland, to build its first Earth science-related CubeSat mission.

User comments : 0