Things I have thought about today, in no particular order:
Gamma-ray bursts
Lightning
A heretofore undetected but potentially densely-populated class of objects in the solar system
Laundry
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
Mars
Social networking and astronomy
Temporarily misplacing my wallet last night
Suborbital rockets and their potential for astronomy and tourism
My cat
Feel free to do with this information as you wish.
