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This Thing is -270°C and is EVERYWHERE

Join host Dianna Cowern as she puts her MIT physics degree to the test. With experiments, demonstrations, and cool new discoveries, Physics Girl sheds new light on the fun, adventurous side of physical science.

This Thing is -270°C and is EVERYWHERE

Season 4 Episode 18 | 9m 29s | CC

In this video, Dianna explores one of the most mysterious discoveries in physics - a constant microwave signal that seemed to be coming from everywhere in the universe. It turned out to be light from an unusual process 13.8 billion years ago.

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