A healthy person usually has a platelet count of 150,000 to 400,000. You have thrombocytopenia if your number falls under 150,000. If you're wondering what the long name means, here's how it breaks down: thrombocytes are your platelets and penia means you don't have enough of something.
The Perseids are active from July 13 to August 26, according to the American Meteor Society, a nonprofit scientific organization that supports the research of astronomers, but the meteor shower peaks between August 12-13.
Orionid Meteor Shower at its Peak Tonight. The leaves are turning, there's a nip in the air and the Orionid meteor shower spawned by Halley's Comet is at its peak overnight tonight (Oct. 20). If the bright moon or bad weather doesn't spoil the view, stargazers can catch a glimpse of the annual Orionid meteor shower as it reaches its peak late Sunday and early Monday (Oct. 21).