DNA can survive atmosphere re-entry

Interesting how tough DNA can be.

Inspiring Science

747px-EntryOn March 29, 2011, a TEXUS-49 rocket took off from northern Sweden for a short trip into space and back through Earth’s sheltering blanket of atmosphere. This amazing feat of engineering has become surprisingly routine — we humans have gotten to the point where launching a vehicle into space to carry out an experiment or deliver a satellite into orbit no longer inspires awe and wonder. Sounding rockets are commonly used as sub-orbital research platforms. In this case, one of the experiments on the mission was a test of how well DNA molecules can survive the temperatures involved in plummeting back through Earth’s atmosphere. The results, published earlier this year in PLOS ONE, show that DNA is tough enough to make it through atmospheric re-entry after a quick jaunt in space.

The research team attached DNA samples to various locations on the outside of the rocket nine days before…

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