These opposing skylines, one a solid silhouette the other vaporous but vividly hued, were observed from the balcony of my home in Turin, Italy on
The photo above shows an eye-catching twilight sky over Salt Lake, Bahariya Oasis, Egypt. Salt Lake is one of several salt lakes scattered in Egypt’s
One of the rarest of Earth’s astronomical events is a ghostly glow called the zodiacal light that the ancient Greeks believed that it was caused
In the Northern Hemisphere spring officially begins at 7:21 p.m. ET on Sunday, March 20, 2011—the vernal equinox, or spring equinox.
The photo above showing a gorgeously hued and misshaped Sun was taken from Alexandroupoli, Greece. When the Sun is on the horizon, or very near
The black hole in the nearby galaxy M87 weighs in at 6.6 billion suns, making it the local universe’s heavyweight champ.
In early December 2010, I carefully planned to capture a “close” encounter between the slender old Moon and the Basilica of Superga, perched high on
Star trails create arches over the horizon in a long-exposure picture of the night sky taken from Mount Kilimanjaro in Tanzania.
The Sun and New Moon rose together on January 4, in a partial solar eclipse in Europe.
Each December, while darkness engulfs the Arctic, Antarctica enjoys round-the-clock sunlight. The light arrives at a low angle, however, as the Sun makes a daily