SpaceX launched a Falcon 9 rocket on its record-tying 14th mission Saturday (Oct.8), sending two commercial communications satellites to orbit.
Earth’s highest, coldest, rarest clouds are back. How to see the eerie ‘noctilucent clouds’ this summer.
Look North as the stars appear in June and July to have a chance of seeing rare noctilucent (or ‘night-shining’) clouds with the naked eye.