Mars astronaut radiation shield set for moon mission trial: Developer

A vest designed to shield astronauts from deadly solar particles in deep space is set for trials on a lunar mission ready for deployment on any manned mission to Mars, its Israeli developers said.

The AstroRad Radiation Shield has been devised by Tel Aviv-based StemRad, which has already produced and marketed a belt to protect rescue workers from harmful gamma ray radiation emitted in nuclear disasters, such as Chernobyl and Fukushima.

The vest will protect vital human tissue, particularly stem cells, which could be devastated by solar radiation in deep space or on Mars, whose sparse atmosphere offers no protection, StemRad's CEO Oren Milstein said. US space agency NASA has said it hopes to send astronauts to Mars in the mid-2030s.

The vest is made of layers that look like a contoured map and will be tailor-made for each astronaut. Non-metallic protective materials will be positioned on each shield to cover the organs of each astronaut.

"This product will enable human deep space exploration. Our breakthrough has come in creating the architecture of the multi-layered shield to accurately cover the most important organs," Milstein said.

"Based on our simulations, we're sure it works but to be 100 percent sure, we're sending it up on EM-1," he said, referring to NASA's Exploration Mission-1, the first flight of the combined Space Launch System rocket and the Orion capsule.

The Orion will have its own small shelter for solar storms or flares that have dangerous bursts of radiation, and the vest, Milstein said, will offer the same degree of protection so astronauts can keep safe in other parts of the spacecraft.

Astronauts in Earth's orbit, such as those on the International Space Station, do not face the same risk because they are protected by the planet's magnetic field which acts as a shield, he added.