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PBS Space Time
The Particle We’ve Been Chasing for 30 Years Might Not Exist
The universe thrums with quantum fields, except something may be missing: the sterile neutrino.
New Evidence: Earth Had Rings (and Might Regain Them)
PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.
New Evidence: Earth Had Rings (and Might Regain Them)
Season 11 Episode 1 | 16m 30s | CC
There’s an extremely good chance that Earth once did have a ring system. At least, that’s the proposal by a recent study that has evidence that a mysterious burst in meteor activity nearly half a billion years ago was actually caused by that ancient ring system collapsing onto the Earth. And, you know, if we had a ring once maybe we can have one again.
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