Earlier this year NASA's Solar Dynamics Observatory celebrated five years of operation. To celebrate NASA released a highlights reel of its first half decade of hovering in space watching the dance of giant loops hovering in the corona and enormous sunspots growing and shrinking on the sun's surface. It’s some of the most stunning space imagery we have seen.
Another chance to read about this fascinating debate. This was first published in April 2014. Just because we can do 16 bit, High Dynamic Range, 6K and 8K: does that mean we need it? Here's where to start in the debate