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.
The Sky This Week for August 12 to August 21. 1  Open cluster NGC 6025, globular cluster NGC 6139, and planetary nebula NGC 6153. 2  Sky This Week for August 5 to August 14, 2016.  Perseid meteor shower set for its best show in nearly 20 years.