Page last updated at 13:26 GMT, Monday, 14 December 2009

US sky survey probe set to launch

A Nasa satellite designed to uncover hidden cosmic objects is scheduled to be launched from California.

The Wide-field Infrared Survey Explorer (Wise) will blast off from Vandenberg Air Force Base on a Delta II rocket between 1409 and 1423 GMT.

It will pick up the glow of hundreds of millions of astronomical bodies.

It is expected to uncover objects that have never seen before, including some of the coolest stars and the most luminous galaxies.

It will do this by scanning the entire sky in infrared light with a sensitivity hundreds of times greater than ever before.

Viewing the sky with "infrared glasses" can lift a veil on many objects that are not visible to the naked eye.

The satellite will also have a role in planetary protection: Wise will be able to detect some of the darkest near-Earth asteroids and comets.

Artist's impression of Wise (Nasa)
Wise will cast a wide net for astronomical objects of interest

This would help efforts to determine whether any of these objects could strike Earth in the near future.

Wise will join two other infrared missions in space: Nasa's Spitzer Space Telescope and the European Space Agency's Herschel Space Observatory.

This mission is different from those others in that it will survey the entire sky.

It is designed to cast a wide net to catch a variety of objects of interest, including rare oddities.

Print Sponsor

Hubble sees most distant galaxies
08 Dec 09 |  Science & Environment
The space giant is coming
01 May 09 |  Science & Environment
First stars in telescope's sights
12 Jan 07 |  Science & Environment

Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit


Sign in

BBC navigation

Copyright © 2017 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Americas Africa Europe Middle East South Asia Asia Pacific