Vacuum

Tardigrades survived 10 days exposed to the Vacuum of Space and cosmic Radiation in a 2007 ESA experiment. Some even endured solar UV; after rehydration on Earth, they revived and laid eggs—the first animal shown to survive such exposure.

In 2008, UCLA showed in Nature that peeling Scotch tape in a vacuum emits nanosecond X-ray bursts. The tape's adhesive side charges positive, outer side negative — a ~40,000 V gap. Accelerated electrons strike across and emit X-rays. They photographed finger bones with it.