The next time you're out watching a sunset, turn around and relish the mighty shadow of Earth looming just behind your back.
It sounds like a comic-book superhero, but this brief spectacle marks the end of daylight with a burst of color.
Travel 130 years back in time to watch Venus transit the Sun in 1882, thanks to the discovery of 147 forgotten photographs taken by David Peck Todd from Mount Hamilton in California.
A magnificent rendezvous between the planet of love and the bright orb of the Sun. One of the most celebrated phenomena in astronomy. A sight unseen by anyone alive today. With superlatives like these describing a transit of Venus, it is little wonder that astronomers are eagerly awaiting the next one — June 8,...