Mars Hoax

Hej alla!
Sitter och titar på Simpsons, det finns inte så mycket att göra. Ute är det mulet, hade det varit fint väder så hade jag varit ute nog. Läser massa astronomi artiklar, och inga är intressanta. Därför vet jag inte riktigt vad jag ska skriva om, utan det får bli en bild istället som jag hittade.

Mars' yta, alltid lika vacker. Och på tal om Mars, kommer ni ihåg när ALLA sa att Mars skulle vara nära jorden för ungefär två år sedan. Många hade fått mail om denna nyhet, och alla var oroliga.  Nu har det börjat igen, NASA varnar för mailen.
Det här hittade jag på NASA's hemsida:

June 9, 2009: Just when you thought it was safe to check your email...

For the sixth year in a row, a message about the Red Planet is popping up in email boxes around the world. It instructs readers to go outside after dark on August 27th and behold the sky. "Mars will look as large as the full moon," it says. "No one alive today will ever see this again."

see captionDon't believe it. Here's what will really happen if you go outside after dark on August 27th. Nothing. Mars won't be there. On that date, the red planet will be nearly 250 million km away from Earth and completely absent from the evening sky.

Right: Only in Photoshop does Mars appear as large as a full Moon.

The Mars Hoax got its start in 2003 when Earth and Mars really did have a close encounter. On Aug. 27th of that year, Mars was only 56 million km away, a 60,000-year record for martian close approaches to Earth. Someone sent an email alerting friends to the event. The message contained some misunderstandings and omissions-but what email doesn't? A piece of advanced technology called the "forward button" did the rest.  Tolerant readers may say that the Mars Hoax is not really a hoax, because it is not an intentional trick. The composer probably believed everything he or she wrote in the message. If that's true, a better name might be the "Mars Misunderstanding" or maybe the "Confusing-Email-About-Mars-You-Should-Delete-and-Not-Forward-to-Anyone-Except-Your-In-Laws."

Another aspect of the Mars Hoax: It says Mars will look as large as the full Moon if you magnify it 75x using a backyard telescope. The italicized text is usually omitted from verbal and written summaries of the Hoax. (For example, see the beginning of this story.) Does this fine print make the Mars Hoax true? After all, if you magnify the tiny disk of Mars 75x, it does subtend an angle about the same as the Moon. No. Even with magnification, Mars does not look the same as a full Moon. This has more to do with the mysterious inner workings of the human brain than cold, hard physics. Looking at Mars magnified 75x through a slender black tube (the eyepiece of a telescope) and looking at the full Moon shining unfettered in the open sky are two very different experiences.

Likewise, your perception of Mars is affected by the planet's surroundings. Locate the planet at the end of a little dark tunnel, and it is going to look tiny regardless of magnification.


To see Mars as big as a full Moon, you'll need a rocketship, and that may take some time. Meanwhile, beware the Mars Hoax.

Nu är frågan, HUR i H*******E ´ska planeten bli lika stor som en fullmåne? Stackars dom som tror på det här :P

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