Titan + Dione = New Desktop
[/caption] Another stunning image from the Cassini spacecraft, suitable for wallpaper on your desktop. Click image for larger version, or…
Stunning Sunrise and Aurora, As Seen from the Space Station
[/caption] Expedition 23 astronaut Soichi Noguchi took and shared so many amazing images during his 6-month stay on board the…
Astronomy Without A Telescope – SETI 2.0
[/caption] Fifty years of eerie silence in the search for extra-terrestrial intelligence has prompted some rethinking about what we should…
Occultation Reveals Distant Kuiper Belt Object is Surprisingly Icy Bright
[/caption] How do you study an extremely small planetary body in the dim outer reaches of our solar system? Get…
Circumference of the Moon
[/caption] The equatorial circumference of the Moon is 10,916 km. And the circumference of the Moon in miles is 6,783…
Circumference of Saturn
[/caption] The equatorial circumference of Saturn is 378,675 km (or 235,298 miles). Not that it's actually possible, but if you…
How Much Bigger is Jupiter Than Earth?
[/caption] Jupiter is the 5th planet from the Sun, and the largest planet in the Solar System. How much bigger…
Video Tour of the Mars500 Habitat
Mars500 participant Diego Urbina (follow him on Twitter at @diegou) provides a tour inside the Mars500 facilities - see how…
Weekend SkyWatcher’s Forecast – June 18-20, 2010
Greetings, fellow Stargazers! Have you been enjoying the rain? Then keep your eyes open for a "celestial shower" as meteoritic…
Circumference of Mars
[/caption] The equatorial circumference of Mars is 21,344 km (or 13,263 miles). This is the distance you would have to…