Oliver Nagy made this cool image between the June and December solstices in 2014. The camera was fixed to a single spot for the entire exposure time, and it continuously recorded the sun's path as glowing trails across the sky. The breaks and gaps between the lines are caused by clouds. Where would today's sun path be? At the top!
You know that look your dog gives you, with the raised eyebrows, that melts your heart? A new study finds that wolves don't do it. It's a part of how dogs have evolved to communicate with humans. Read more.
Earth's seasons result from our planet's tilt on its axis with respect to our orbit around the sun. Watch a video to understand it better. In this illustration, upper left shows the northern winter solstice. Lower left shows northern summer solstice. The equinoxes are on the right. Images via NASA Earth Observatory.
View at EarthSky Community Photos. | Helio C. Vital in Rio de Janeiro, Brazil, caught the ringed planet Saturn (on left) when the moon swept near on June 19. He pointed out that Saturn was 3,000 times farther away from Earth than the moon that night. Thanks, Helio!
