Rod Pyle and Geoffrey Notkin chat with former senior NASA official Lori Garver about how her time at the agency created winds of change.
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.