White blood cells (SEM), showing white blood cells present in a urine sample taken from someone with a urinary tract infection (UTI). The number of white blood cells in urine sediment is normally low. When the number is high, it indicates an infection or inflammation somewhere in the urinary tract.
Forget the most exciting thing I've heard this week. The announcement of Wing Commander creator Chris Roberts' return to space-based PC games, complete with bombastic trailer, is the most exciting video game news I've heard in years.