asteroid

Asteroid Day: reminding us of the threat, pushing us out into space

Summary: Today is asteroid day, an opportunity to see ourselves against the big picture of Earth’s history. As I’ve written before, Apollo was an expensive trip to nowhere, and explained why we have not gone into space, & why we will. Asteroid Day puts in context both this failure (of vision but not boldness) and …

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Solarsail

Why we have not gone into space, & why we will.

Summary: In the 1960s many bright people, from scientists to science fiction writers, predicted that we would have a large presence in space by now. They correctly predicted we would have the technology. Why do we have nothing but a few small robot explorers? What will eventually draw us into space? This is a follow-up …

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More shockwave events to worry about, in addition to peak oil and global warming

Summary:  about shockwaves, the various catastrophic threats to civilization — even to life on Earth.  There are so many, often with believers who warn that this threat deserves the most drastic action.  At the end is a recommendation, a better way to prepare. Shockwaves:  low probability but high impact events.  Difficult to predict when they …

More shockwave events to worry about, in addition to peak oil and global warming Read More »

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