Latest in Tomorrow

Image credit: Jorge Guerrero/AFP/Getty Images

Mars astronauts at greater risk of cancer than previously thought

Cosmic rays are much more of a threat than expected.
983 Shares
Share
Tweet
Share
Save

Sponsored Links

Jorge Guerrero/AFP/Getty Images

You might not want to book that trip to Mars just yet. Researchers have published a study estimating that the risk of cancer from cosmic rays is twice as high as previously thought. They've determined that conventional risk models are incomplete. While NASA and other groups believe that radiation-based cancer stems only from direct cell damage and mutations, the new model accounts for the possibility that heavily damaged cells will increase the cancer risk for "bystander" cells. There's a knock-on effect that would be difficult to escape.

And unfortunately, it wouldn't be a simple matter of wearing a thicker spacesuit. The team believes that existing radiation shielding technology would only "modestly decrease" the threat. Remember, astronauts will likely need to spend hundreds of days on a planet with little protection against cosmic rays, and over a year in deep space. They'll need protection that can withstand serious cosmic ray exposure for extended periods, and current equipment is only really meant to endure mild levels.

The scientists see their findings as a call to action. The medical community will need to spend more time assessing cancer risks before sending astronauts on long trips, and that there are serious ethical concerns if humanity sends people to Mars without a good understanding of the dangers involved. Do you want astronauts to visit knowing there's a significant possibility they'll meet a premature end as a result? This doesn't mean that us humans should put all manned visits on hold, but we might want to think twice about rushing our exploration plans.

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Comment
Comments
Share
983 Shares
Share
Tweet
Share
Save

Popular on Engadget

Bose made a 360-degree audio AR experience for the new 'Star Wars'

Bose made a 360-degree audio AR experience for the new 'Star Wars'

View
'Resident Evil 3' remake hits PS4, Xbox One and PC on April 3rd

'Resident Evil 3' remake hits PS4, Xbox One and PC on April 3rd

View
'Untitled Goose Game' comes to PS4 and Xbox One next week

'Untitled Goose Game' comes to PS4 and Xbox One next week

View
Game-making 'Dreams' arrives on PS4 February 14th

Game-making 'Dreams' arrives on PS4 February 14th

View
Adobe Lightroom's direct import feature comes to iPhone and iPad

Adobe Lightroom's direct import feature comes to iPhone and iPad

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr