Victoria Crater, an impact crater at Meridiani Planum, near the equator of Mars. The crater is approximately 800 meters (half a mile) in diameter. Image: High Resolution Imaging Science Experiment (HiRISE) on Mars Reconnaissance Orbiter, NASA
Super-cell Lightning, Snyder, Nebraska Under a super-cell thunderstorm, a "wall cloud" or "pedestal cloud" may form. This is frequently associated with tornadoes and micro-bursts. Here, a "cloud-to-ground" lightning bolt strikes from a wall cloud.
The sky is falling "Snowy Range Perseid Meteor Shower" by David Kingham of the U. was "highly commended" in the Earth and Space category. Kingham combines 23 individual stills to convey the excitement and dynamism of August's Perseid meteor shower.