Arik shares buttloads, Allen has too many facts, oxygen is heavy, strangeness is strange, moons cause issues, and we hit max fact capacity.
Arik uncovers what things are really named after, Allen goes subatomic, Arik marvels at astronomical coincidence, and Allen considers extraterrestrial flight.
Allen dives in to diodes, Arik explores the origin of taxis, and Allen reveals an unsavoury fact about zygotes.
Arik throws peanuts, Allen tries to cook vegetables, photographers try to prompt a good pose, and the earth's magnetic field threatens to cause trouble.
Scientists discover where birds go, the trouble with coin flips, the limits of the human body, and what exactly you can find in the Perseus Molecular Cloud.