The Chesapeake Bay is cool. No disrespect. But I gotta say I think this 150-million-year-old super-salty ocean that some researchers accidentally discovered below the sediment of the Chesapeake is kind of cooler.

Half a mile of sediment separates the ancient ocean and the bay, the result of an asteroid impact about 35 million years ago.

They say itโ€™s โ€œvery unlikelyโ€ that weโ€™re looking at some kind of underwater โ€œlost worldโ€ scenario. Too bad; swimming with the dolphins has become so passe.

If you want a way to fully appreciate how long ago 150 million years really is, ask someone else. Once a number gets larger than, like, 120-million or so I start to lose perspective.

By the way, USA Today points out the underground ocean is โ€œancient enough for dinosaurs to have drowned in.โ€ Thatโ€™s kind of unnecessarily pessimistic, in my opinion. What about all the dinosaurs that could swim?