MOON-MARS CONJUNCTION TONIGHT: Don't miss this. Tonight, the Harvest Moon and Mars are in conjunction, less than 1 degree apart for some observers. The Moon is nearly full and red Mars is only days away from its closest approach to Earth, making the conjunction extra bright and beautiful. Check Spaceweather.com for sky maps and observing tips.
Aurora alerts: Sign up for Space Weather Alerts and receive a text message when auroras appear in your area.
Above: The Harvest Moon rising over Merida, Spain (Photo credit: Juan Manuel Perez Rayego). Tonight, Mars will rise alongside the Moon shining like a red star almost three times brighter than Sirius.
