
Some tardigrades can survive space vacuum, brief heat above boiling, near-absolute-zero cold, and radiation around 1,000 times the human lethal dose by collapsing into a dehydrated tun and deploying a molecular survival toolkit
Tardigrades survive radiation, vacuum, and near-absolute-zero temperatures by folding into a glassy dormant husk called a tun — and the protein behind the trick is now being borrowed to protect cancer patients from their own radiation therapy.













