Contributed by
Feb 19, 2010

Things I have thought about today, in no particular order:

Gamma-ray bursts


A heretofore undetected but potentially densely-populated class of objects in the solar system


Why my phone sometimes rings audibly and other times chooses not to

The electron column density in a magnetic bubble after a nuclear detonation in the upper atmosphere

Ice cream sandwiches


Social networking and astronomy

Temporarily misplacing my wallet last night

Suborbital rockets and their potential for astronomy and tourism

My cat

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