CLOUD SEASON BEGINS: On May 24th, NASA's AIM spacecraft spotted wispy
electric-blue clouds floating above the Arctic Ocean. This marks the
beginning of the 2016 season for noctilucent clouds. Seeded by
meteoroids, icy noctilucent clouds form at the edge of space where they
can be seen shining in the night sky. Each year, their first detection
by spacecraft is usually quickly followed by ground-based sightings.
Indeed, a photographer in North Wales spotted some this morning.