Alex Krivenyshev of the website WorldTimeZone.com caught these photos of the lightning show over New York City on May 28. "Watching from my window," he wrote. Thanks for sharing, Alex!
The constellations Corvus the Crow and Crux the Southern Cross cross the sky together, and reach their highest point in the sky at about the same time. Here's a photo from Dr Ski in the Philippines, showing their relationship.
The spacecraft for NASA's next Mars mission - Mars 2020 - is really beginning to take shape now. Here's the complete cruise stage, suspended in a cleanroom at JPL. It'll power and guide the spacecraft on its 7-month voyage to Mars.
Peter Lowenstein in Mutare, Zimbabwe, caught this photo of a waxing moon, setting, with what's called a Golden Handle (the curved feature at top right, jutting up along the line between light and dark on the moon).
When dense rain showers are falling into a rainbow, you might see one or more dark spokes centered on the point exactly opposite the sun. These are called rainbow spokes, or rainbow wheels.