Venus, Saturn, Jupiter and Mars will appear to line up and be bright enough to see with the naked eye in the first few hours ...

There are currently 92 moons known to orbit Jupiter. The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope ...

7.25 x 6.75 in. (18.4 x 17.1 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...