(via Reddit)
Tag: astronomy
Aurora over Norway
NASA’s Astronomy Picture of the Day site has an amazing picture of an Aurora over Norway taken by Max Rive. I especially like the climber standing with hands raised at the summit of the mountain.
How Far is it to Mars?
Reeealllly fffaaaaaarrrrrrrr.
How big is the moon?
U.S. overlaid on the Moon for a sense of scale:
How big is the Moon, really? Reddit user boredboarder8 provided some perspective with this image of the Moon with an overlaid United States. It’s roughly estimated (and others would be better at commenting on the accuracy better than me), but after some back-of-napkin math it seems about right. The area of the United States, not including Alaska, is a little over 20 percent of the Moon’s surface area. [via io9]
Our solar system in action
Distance to the horizon
via – mlkshk
The Debunker: Is There A “Dark Side” Of The Moon?
The Debunker: Is There A “Dark Side” Of The Moon?
Ken Jennings:
It should be obvious that, indeed, one half of the Moon is always lit by the Sun, and one half is dark. But, despite the impression you may have gotten from bad science-fiction movies and prog-rock albums, it’s not always the same side…
The Scale of the Universe 2
The universe is big. Scroll in to the smallest particle and out to the observable universe.