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The Best Things We Saw At Facebook’s F8 Keynote Today
Bots, live video, and Facebook's 10-year plan
Facebook’s New Personal Assistant, M, Is a Mix Of Man And Machine
The AI that can help you buy things
NASA’s MESSENGER Probe Set To Slam Into Mercury Today
A look back at the spacecraft's greatest discoveries
When Space Probes Crash–For Science And Otherwise
The greatest hits of Earth's unmanned spacecraft
NASA Confirms Presence Of Water Ice On Mercury
Daytime on Mercury’s equator can break the 800-degree mark, but nonetheless there’s long been speculation that the first planet’s poles … Continued
Mercury Has a Liquid Core, and Other New Surprises From the Innermost Planet
NASA’s Messenger spacecraft entered orbit around Mercury one year ago this week, and the spacecraft has been hard at work. … Continued
Gallery: Messenger Sends Back First-Ever Pictures From Orbit Around Mercury [Updated]
Messenger, meet Mercury. The first image ever obtained from a spacecraft in orbit around Mercury was snapped in the wee … Continued
![Gallery: Messenger Sends Back First-Ever Pictures From Orbit Around Mercury [Updated]](https://www.popsci.com/uploads/2019/03/18/FZZMUKCNIRK5HA7GZI44J6DWUM.jpeg?crop=357:215&width=357)
After Messenger Spacecraft’s Successful Orbital Burn, Mercury Now Has Its First-Ever Satellite
Last night, NASA’s Messenger probe fired its thrusters and became the first man-made satellite ever to orbit Mercury. It’s a … Continued
Next Week Messenger Probe Will Become First Craft To Orbit Mercury
NASA’s intrepid Mercury observer, the Messenger satellite, is about to become the first spacecraft ever to orbit the first planet. … Continued
