Showing posts with label comet. Show all posts
Showing posts with label comet. Show all posts

Sunday, October 26, 2014

We are about to land on a smelly comet

What’s surprising is we already have extremely rich chemistry at this distance from the sun,”

“The perfume of 67P/C-G is quite strong, with the odor of rotten eggs (hydrogen sulfide), horse stable (ammonia), and the pungent, suffocating odor of formaldehyde. This is mixed with the faint, bitter, almond-like aroma of hydrogen cyanide,” Kathrin Altwegg, head of the ROSINA project at the Center for Space and Habitability (CSH) at the University of Bern, described the smell. “Add some whiff of alcohol (methanol) to this mixture, paired with the vinegar-like aroma of sulfur dioxide and a hint of the sweet aromatic scent of carbon disulfide, and you arrive at the ‘perfume’ of our comet”.


Monday, November 25, 2013

"Comet ISON, if it survives trip around the sun, could bring spectacular sky show"

"On Thanksgiving, when the comet rounds the sun, professional and amateur astronomers alike will await ISON’s fate with bated breath. Its tail may get ripped off by a cloud of solar particles, or the sun’s brutal radiation and pressure may demolish it completely."
But if ISON makes it out alive, stargazers say, it could provide a breathtaking show visible to the naked eye and possibly live up to the name “Comet of the Century,” as some astronomers have dubbed it.

“On Friday, we’ll all be delighted to see its beautiful face as it then comes around the sun,” said Jim Green, director of NASA’s planetary science division. “Then between Thanksgiving and Christmas, it will fly over the North Pole — a very nice holiday comet.”

ISON is a lone traveler originating from a giant population of comets at the very edge of the solar system.
Washington Post, Meeri Kim