Repeated safety lapses have hobbled Los Alamos National Laboratory's work on the cores of US nuclear warheads.
Unlike a candidate today, the candidate in the ancient Mesoamerican city of Tlaxcallan would be starved, beaten with spiked whips when he fell asleep, and required to cut himself in bloodletting rituals before he could join the government.
Large genomic databases are allowing researchers to see our traits evolve.
New findings on how the body adapts to high altitude could lead to reductions in altitude sickness among vacationers to mountain destinations around the world.
The cosmos has no special direction that might be used to define a universal "up," according to a new study.
No buts about it, the butthole is one of the finest innovations in the past 540 million years of animal evolution. Now, several unprecedented videos of gelatinous sea creatures called comb jellies, or ctenophores, threaten to upend the standard view of the evolution of the so-called through-gut.