Call it a Halloween "treat" -- as opposed to a trick.
On Oct. 31, an Orbital ATK Minotaur-C rocket blasted off from Vandenberg Air Force Base in California. Its cargo: a payload of 10 imaging satellites going into orbit for one of the biggest satellite companies you've probably never heard of: Planet Labs.
Planet isn't a household name just yet, but it's a name you'll want to get familiar with. Believe it or not, Planet operates the biggest commercial satellite constellation in space today.
Planet's Dove satellites now ring Earth, taking pictures daily. Image source: Planet Labs.
Look at all the pretty satellites!
If you look up in the sky at night, you'll see a lot of "stars" -- but not all of those stars are suns. Some are actually satellites circling at low altitude. All sorts of satellites circle the Earth today -- about 1,400 of them are operational (alongside tens of thousands more pieces of space junk). Of the constellations up there right now, Iridium's is probably the best known. Its 30 satellites provide customers around the world with communications services in the air, on land, and at sea -- and Iridium has 50 more satellites on the way.
Other companies have proposed building bigger constellations of satellites. OneWeb hopes to put 720 satellites in orbit. Boeing plans to orbit more than a thousand, while Elon Musk's SpaceX has proposed -- get this -- a constellation numbering in excess of 4,400 satellites, all delivering Internet to the masses.
For the time being, though, those are just plans. Right now, Planet Labs has the largest satellite constellation in orbit.
"Planet" is the name, taking pictures of Earth is its game
In contrast to communications satellite constellations, both existing and planned, Planet puts satellites in orbit for the purpose of photographing ("imaging") the Earth. The company only set up shop six years ago, but it's already achieved its primary goal of being able to "image the entire Earth's landmass every day."
Last month's launch delivered six high-resolution SkySats (acquired with Planet's purchase of Alphabet subsidiary Terra Bella earlier this year), along with four of Planet's own Dove medium-resolution satellites. With these in orbit, Planet now boasts a satellite network of more than 180 medium-res satellites (Doves and older RapidEye birds), plus 13 of the high-res SkySats acquired from Alphabet.
The number is constantly changing as older satellites drop out of orbit and newer satellites are added, but Planet says it has about "200 medium[-] and high[-]resolution satellites" in orbit today. At six times the size of Iridium's satellite fleet, this gives Planet "the world's largest fleet of medium[-] and high-res assets."