The current GOES-East and GOES-West have been faithfully providing continuous imagery and data on Earth and space weather for almost a decade. So, with the launch of the first of the next generation of GOES satellites, GOES-R, what is NOAA trying to accomplish?
Why does our planet look the way it does from space? How does light interacting with land, clouds, water, snow, ice, gases, and various aerosols all come together? One way to learn the answer is to try and synthesize DSCOVR's view from various "building blocks" of geophysical and atmospheric data.
Inspired by the Mars Webcam on Mars Express, ESA's Cluster mission has turned on a camera on the Cluster spacecraft for the first time since their launch more than 15 years ago. UPDATE: It has now acquired images of Earth.
The Deep Space Climate Observatory (DSCOVR) has begun sending us fresh, whole-hemisphere images of our own fragile planet. Some sources say that the spacecraft is "orbiting" the L1 point. Dave Doody thinks this warrants some scrutiny.