Health knowledge made personal
Join this community!
› Share page:
Go
Search posts:

chaussures de foot pas cher Astronomers

Posted Mar 19 2013 6:37am

Astronomers reveal new views of a minor body After the EPOXI spacecrafts spectacular flyby of comet Hartley 2 on 4 November, researchers are delighted at the high-resolution images that have given them a deeper insight into the comets workings.The pictures, which contain a flurry of dry ice and snow, reveal that Hartley chaussures de foot Adidas 2 has a strange divided structure, with some parts dominated by water and others by carbon-dioxide.The images show chunks of ice the size of golf balls and basketballs coming from the comets nucleus, which astounded

the team, said principal investigator Michael AHearn during a media briefing at NASA Headquarters in Washington D.C. on 18 November. A further spray of micron-sized, fluffy globs, akin to a dandelion puff, drifted around the comets nucleus, said Jessica Sunshine, an astronomer at the University of Maryland and EPOXI team member.It looks like a snow globe that youve shaken and let fly, said Peter Shultz of Brown chaussures de foot Nike University in Providence, Rhode Island.Behind that beauty lies some important science.The researchers discovered that jets of sublimating carbon dioxide were pulling

ice and dust grains from the comets rough edges while Hartleys smooth waistthe central part of the nucleuswas mainly shooting off water vapor, said Sunshine.We didnt expect to Nike GS 2012 see this at all, she said.The waist was behaving much more like comet Temple 1, which EPOXI previously visited during the 2005 Deep Impact mission, said AHearn. But the unique lobes prove that Hartley 2 has more carbon dioxide in its interior than any other measured comet, he said.The team believes that the carbon dioxide will be an important clue

to understand where and how Hartley 2 was born, which could yield information on how the solar system as a whole formed, AHearn said. He added the flyby has Adipure 11Pro TRX IC emphasized how different comets are from one another, which means a straightforward creation story will not be easy to achieve.In science, you usually want a simple explanation, but things have gotten much more complex, he said.Previously: Glimpsing a comet��s heartThe 3-D image at right should be seen with blue-red glasses, where the red lens is in front of the

left eyeImages: NASA xupinpin2013319

Nike GS 2012

Post a comment
Write a comment:

Related Searches