Monthly Archives: July 2019

Doubling Down

Angela Saini has an interesting review in Nature of Skin Deep, a ridiculous book about how racial differences have no role in sports achievement. Of course, that’s just nonsense, obviously so: some Kenyan and Ethiopian populations are way better at … Continue reading

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Mars Direct

Trump was baiting Nasa’s head, asking why we couldn’t go directly to Mars instead of puttering around on the Moon first, bringing in Michael Collins and Buzz Aldrin on the subject. Trump’s right: assuming that you want to send a … Continue reading

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The Reason Why

There are odd things about the orbits of trans-Neptunian objects that suggest ( to some) that there might be an undiscovered super-Earth-sized planetĀ  a few hundred AU from the Sun.. We haven’t seen it, but then it would be very … Continue reading

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