astronomy – Jonathan Frei https://jonathanfrei.com Based on a true story Tue, 11 Nov 2014 13:43:20 +0000 en-US hourly 1 https://wordpress.org/?v=6.1.1 https://i0.wp.com/jonathanfrei.com/wp-content/uploads/2015/08/favicon-160x1601.png?fit=32%2C32&ssl=1 astronomy – Jonathan Frei https://jonathanfrei.com 32 32 76405128 Earth and Moon https://jonathanfrei.com/2014/11/earth-and-moon https://jonathanfrei.com/2014/11/earth-and-moon#respond Mon, 10 Nov 2014 17:41:41 +0000 http://jonathanfrei.com/?p=5004 earth and moon

(via Reddit)

]]> https://jonathanfrei.com/2014/11/earth-and-moon/feed 0 5004 Aurora over Norway https://jonathanfrei.com/2014/11/aurora-over-norway https://jonathanfrei.com/2014/11/aurora-over-norway#respond Mon, 03 Nov 2014 14:34:31 +0000 http://jonathanfrei.com/?p=4695 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.

]]> https://jonathanfrei.com/2014/11/aurora-over-norway/feed 0 4695 How Far is it to Mars? https://jonathanfrei.com/2013/04/how-far-is-it-to-mars https://jonathanfrei.com/2013/04/how-far-is-it-to-mars#respond Thu, 04 Apr 2013 12:35:36 +0000 http://104.131.64.180/?p=246 How Far is it to Mars?

Reeealllly fffaaaaaarrrrrrrr.

]]> https://jonathanfrei.com/2013/04/how-far-is-it-to-mars/feed 0 246 https://jonathanfrei.com/2013/02/how-big-is-the-moon-u-s-overlaid-on-the-moon https://jonathanfrei.com/2013/02/how-big-is-the-moon-u-s-overlaid-on-the-moon#respond Wed, 27 Feb 2013 20:16:34 +0000 http://104.131.64.180/?p=320

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]

]]> https://jonathanfrei.com/2013/02/how-big-is-the-moon-u-s-overlaid-on-the-moon/feed 0 320 Our solar system in action https://jonathanfrei.com/2012/10/our-solar-system-in-action https://jonathanfrei.com/2012/10/our-solar-system-in-action#respond Fri, 19 Oct 2012 22:14:25 +0000 http://104.131.64.180/?p=479 nvdaH.gif (500×494)

]]> https://jonathanfrei.com/2012/10/our-solar-system-in-action/feed 0 479 https://jonathanfrei.com/2012/10/1850s-poster-of-the-planets-this-is-great-via https://jonathanfrei.com/2012/10/1850s-poster-of-the-planets-this-is-great-via#respond Wed, 10 Oct 2012 12:22:03 +0000 http://104.131.64.180/?p=565

1850s poster of the planets

This is great.

via Kottke

]]> https://jonathanfrei.com/2012/10/1850s-poster-of-the-planets-this-is-great-via/feed 0 565 Distance to the horizon https://jonathanfrei.com/2012/10/distance-to-the-horizon-via-mlkshk https://jonathanfrei.com/2012/10/distance-to-the-horizon-via-mlkshk#respond Thu, 04 Oct 2012 13:29:03 +0000 http://104.131.64.180/?p=589

via – mlkshk

]]> https://jonathanfrei.com/2012/10/distance-to-the-horizon-via-mlkshk/feed 0 589 The Debunker: Is There A “Dark Side” Of The Moon? https://jonathanfrei.com/2012/09/the-debunker-is-there-a-dark-side-of-the-moon https://jonathanfrei.com/2012/09/the-debunker-is-there-a-dark-side-of-the-moon#respond Wed, 05 Sep 2012 14:03:00 +0000 http://104.131.64.180/?p=645 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…

]]> https://jonathanfrei.com/2012/09/the-debunker-is-there-a-dark-side-of-the-moon/feed 0 645 The Scale of the Universe 2 https://jonathanfrei.com/2012/02/the-scale-of-the-universe-2 https://jonathanfrei.com/2012/02/the-scale-of-the-universe-2#respond Wed, 15 Feb 2012 11:30:05 +0000 http://104.131.64.180/2012/02/the-scale-of-the-universe-2/ The Scale of the Universe 2

The universe is big. Scroll in to the smallest particle and out to the observable universe.

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