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after completing its primary mission to

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map the infrared sky nasa's wide field

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infrared survey explorer or wise has

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reached the expected end of its onboard

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supply of frozen coolant

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although wise has warmed up nasa has

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decided the mission will still continue

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wise will now focus on our nearest

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neighbors the asteroids and comets

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traveling together with our solar

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system's planets around the sun

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the neowized post-cryogenic mission is

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designed to complete the survey of the

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solar system and finish the second

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survey of the rest of the sky at its new

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warmer temperature of about minus 334

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degrees fahrenheit using its two

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shortest wavelength detectors the survey

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extension will last one to four months

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depending on early results

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wise launched december 14 2009 from

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vandenberg air force station in

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california aboard a delta ii launch

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vehicle its 16-inch infrared telescope

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scans the skies from an earth-circling

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orbit crossing the poles it has already

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snapped more than 1.8 million pictures

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at four infrared wavelengths

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currently the survey has covered the sky

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about one and a half times producing a

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vast catalog containing hundreds of

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millions of objects from near-earth

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asteroids to cool stars called brown

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dwarfs to distant luminous galaxies

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to date wise has discovered 19 comets

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and more than 33 000 asteroids including

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120 near-earth objects which are those

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bodies with orbits that pass relatively

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close to the earth's path around the sun

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more discoveries regarding objects

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outside our solar system such as the

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brown dwarfs and luminous galaxies are

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the mission was designed for a

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nine-month all-sky survey and we have

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met all our mission objectives and

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this whole sky has been surveyed in the

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infrared the mission actually has four

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detectors two in a slightly shorter

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wavelength and two longer wavelengths

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when the

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instrument heats up the two longer

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wavelength detector can no more be used

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because of the background but the two

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shorter wavelengths can still do a

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limited amount of science

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and the science that we hope to achieve

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is to look at asteroids and near-earth

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objects and so we plan to run the

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instrument the mission for another month

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to see

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how much of the in of the new earth

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objects we can actually see and if it

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turns out that

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we can see a significant number of them

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that we may extend the emission a little

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longer the all-sky survey is

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going to produce an atlas of all the uh

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objects in the sky plus we are going to

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also

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take out some not only all the images

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but actually identify some of the

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objects

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and this will then give an astronomers a

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chance to study uh all that there is in

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the infrared sky all the scientific

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objectives have been met and we are on

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track to get uh

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the data all archived and to release the

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first set of images to the scientific

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community about 55 of the sky should be

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released in mid-april and

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this will then be available to the

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entire scientific community to analyze

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and get new science and we hope to

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release the less