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#903278 11/19/15 05:11 PM
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Laughter is good for everything, and astronomy and space can be funny too.

Astronomy Humor is a collection of astronomy jokes for kids, adults and geeks of all ages. Laughter helps to keep us young and healthy, so see if anything tickles your fancy. (And how *does* the Man in the Moon cut his hair?)

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Mona - Astronomy #903305 11/20/15 04:05 PM
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Cartoonist Bizarro has a quirky look at astronauts collecting rocks on the Moon.

But on a serious note, we don't know what (to us) unexpected life forms might exist elsewhere. After all, it's only in recent decades that we learned about unexpected life forms that exist on Earth. There are bacteria that thrive in killer environments with high radioactivity, temperatures that are above boiling or below freezing or highly acidic or alkaline, and many others. There are also entire ecosystems around deep sea vents whose energy doesn't come from the Sun.

Last edited by Mona - Astronomy; 11/27/15 01:58 AM.
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ONE DAY ON MERCURY LASTS APPROXIMATELY 1408 HOURS.

You can see this meme with a photograph of Mercury.

THE SAME AS ONE MONDAY ON EARTH.

Interesting fact: NASA's Messenger mission to Mercury came to an end in April of this year by being crashed into the planet. It had run out of the fuel it needed to stay in orbit.

Last edited by Mona - Astronomy; 11/27/15 01:57 AM.
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Cartoonist XKCD shows an irreverent audience reaction to the pale blue dot.

Do you remember the "family portrait" Voyager 1 took as it left the planets behind? Here's the bit that is Earth, which Carl Sagan called the pale blue dot.

Last edited by Mona - Astronomy; 11/27/15 01:56 AM.
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It's true that the Sun is losing mass, as the carton by Sydney Harris says. But over 99% of the mass of the whole Solar System is in the Sun - it can lose a lot without its being noticeable!

10 Amazing Facts about the Solar System

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A problem with the Via Lacta (Milky Way) for some astronomers?

Most people today cannot see the Milky Way because of light pollution. But to look along the plane of the Galaxy, there are so many stars that they no longer look like individual stars. It looks like a white liquid.

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I think anybody who's taken enough airplane flights will appreciate this cartoon. Right?

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Remember all that supposed Mayan prophecy end-of-the-world nonsense way back in 2012? Here's cartoonist Chris Madden's cartoon Mayan calendar 2013.

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