I don’t really understand the mystery.

http://www.nasa.gov/mission_pages/sunearth/news/venus-arc.html

The arc of Venus is the bit sticking up above the sun’s circumference, which as one would expect is and arc.

Peak Warming Man said:

I don’t really understand the mystery.

http://www.nasa.gov/mission_pages/sunearth/news/venus-arc.html

The arc of Venus is the bit sticking up above the sun’s circumference, which as one would expect is and arc.

“I was flabbergasted when I first saw it during the 2004 transit,” recalls astronomy professor Jay Pasachoff of Williams College. “A bright, glowing rim appeared around the edge of Venus soon after it began to move into the sun.”

For a brief instant, the planet had turned into a “ring of fire.”

Researchers now understand what happened. Backlit by the sun, Venus’s atmosphere refracted sunlight passing through layers of air above the planet’s cloudtops, creating an arc of light that was visible in backyard telescopes and spacecraft alike.”

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Um, for a very, very brief instant, I didn’t know the answer. But I had worked it out before I got to the third paragraph in the quote above, where they describe the whys and wherefores.

The mysterys are:

Why are the atmospheres of Earth and Venus so different?

And why does Venus’ atmosphere spin so fast, compared to earth.

Why do I keep looking for the hidden meaning?

And what has this to do with tennis anyway?

Arc is pronounced with a hard ‘c’, not soft ellipsis

OCDC said:

Arc is pronounced with a hard ‘c’, not soft ellipsis

LOL! Nice work!