Answer: Really, Really Big and Empty Here is another visualization of just how big the solar system is, and how much empty space exists. That’s why we call it “space,” after all. It’s called “If the Moon Were Only 1 Pixel,” and it was created by Josh Worth art and design.
Answer: Really Big The BBC has created a fun interactive called “Space Race” that gives you a sense of just how big the solar system is. [Hat tip: io9]
io9 posts about recent news that the Hubble Telescope found plumes of water erupting near the South Pole of Jupiter’s moon Europa. Europa has long been suspected of having a liquid water ocean underneath the surface, and this discovery seems to indicate that this water is much more accessible from the surface than once thought.… Read More Holy @$#!: Water Eruptions on Europa (io9)
The Juno spacecraft flew by Earth on its way to Jupiter back in October. EarthSky has posted photos Juno took of the Earth-Moon system during the fly-by. In the animation, you see the spinning Earth and the moon sweeping by in its orbit.
I recently posted about Venus. It’s the crazy bright light in the southwest after sunset–the “evening star” that isn’t really a star. Earthsky.org has a nice post explaining why Venus is so bright and why it reaches its peak brightness on December 6.
Spacecraft Observing Comet ISON Comet ISON is approaching the sun, and while it is doing so, various NASA spacecraft are now able to image it. The comet’s closest approach to the sun happens on Thanksgiving Day!