No, this is not a warning to take cover in advance of an impending asteroid impact, nor is it confusion about the nature of comet 67Pโthis is a tale about an asteroid and a duck. But not any old duck, rather one particular auld Pekin duck: the absurdly wealthy, characteristically cranky, adventure capitalist Scrooge McDuck, …
The Expanse: A personal distress call
When I first watched The Expanse, I didn't get on board right away. Yes, the science sounded good, but like a Belter from Ceres trying to survive in Earthโs gravity, trying to fit together the pieces of this puzzle was literally crushing me. I needed to find my Rosetta Stoneโฆand not just for the dialects. To …
The Edge of Space
On 11 July, 2021, Sir Richard Branson, founder of Virgin Galactic, took a suborbital flight to the inner edge of outer space, reaching an altitude of 86 km (54 miles) above the surface of the Earth. Although it marked a milestone for space tourism, where that milestone marker should be placed is an ongoing matter …
A History of Asteroid Classification
I once read a quote in a conference abstract that stated the paper had been written to serve as โa historical guide to the asteroid literature for the perplexedโ. That quote sums up my desire to write this piece about the history of asteroid classification and the schemes currently in use. When asteroid spectral types …

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