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Space elevators, black holes and time travel

Karl, Al and Zan

Karl, Al and Zan

The science of space, with Dr Alastair Reynolds. Plus: how does broadband go faster?; why can't nuclear waste be shot in to the Sun?; and what happens when black holes merge?

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Subjects: astronomy-space, blackholes, planets-and-asteroids, the-universe, space-exploration, spacecraft, weird-and-wonderful, the-moon

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The Chicxulub asteroid impact triggered intense acid rain and ocean acidification resulting in the Cretaceous-Palaeogene mass extinction event 66 million years ago  Asteroid strike triggered acid rainArticle has audio

Wednesday, 12 March 2014

Asteroid impact that killed the dinosaurs turned oceans into acidic stew. Also; black hole spinning at almost half the speed of light, and plasma plumes help protect Earth from a violent Sun.