One Russian-linked campaign posing as part of the Black Lives Matter movement used Facebook, Instagram, Twitter, YouTube, Tumblr and Pokémon Go and even contacted some reporters in an effort to exploit racial tensions and sow discord among Americans.
The Rosetta spacecraft was launched in 2004 and arrived at Comet 67P/Churyumov-Gerasimenko on August 6, 2014, becoming the first probe to rendezvous with a comet. On November 12, Rosetta dropped its Philae lander to the comet's surface -- another first. But Philae bounced and didn't grab onto the comet in its designated landing spot. After three days, the lander's battery died and it went into hibernation. It woke up and briefly communicated with Rosetta in June and July 2015 as the comet came closer to the sun. Mission scientists weren't sure exactly where the probe had ended up. Until now.
It's been five years since NASA's Curiosity Mars Rover landed on the red planet on August 6, 2012. The rover survived the much-publicized "seven minutes of terror" and safely landed near Mount Sharp. The rover accomplished its main goal in less than a year, collecting a rock sample that shows ancient Mars could supported living microbes.