 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Planck Satellite To Be Presented To Media
Paris, France (ESA) Jan 17, 2007 ESA PR 04-2007. By the end of February, integration of Planck, the ESA spacecraft due to study relic radiation from the Big Bang, will have been completed - and so too will a major step towards launch. ESA and Alcatel Alenia Space (AAS) are jointly inviting the media to a press conference to be held at the AAS facilities in Cannes, France, on 1 February to hear about the mission's technological achievements and scientific objectives and to view the spacecraft in all its splendour. Planck will make the most accurate maps yet of the microwave background radiation that fills space. It will be sensitive to temperature variations of a few millionths of a degree and will map the full sky in nine wavelengths. The immediate outcome of the Big Bang and the initial conditions for the evolution in the universe's structure are the primary target of this important mission. From the results, a great deal more will be learnt not only about the nature and amount of dark matter, the 'missing mass' of the universe, but also about the nature of dark energy and the expansion of the universe itself. To address such challenging objectives, Planck will need to operate at very low, stable temperatures. Once in space, its detectors will have to be cooled to temperature levels close to absolute zero (-273.15C), ranging from -253C to only a few tenths of a degree above absolute zero. The Planck spacecraft thus has to be a marvel of cryotechnology. After integration, Planck will start a series of tests that will continue into early-2008. It will be launched by end-July 2008 in a dual-launch configuration with Herschel, ESA's mission to study the formation of galaxies, stars and planetary systems in the infrared. Related Links Planck overview Herschel overview Stellar Chemistry, The Universe And All Within It Understanding Time and Space
A General For Iraq
Washington (UPI) Jan 16, 2007President George W. Bush and Defense Secretary Robert Gates chose an able and experienced officer in Lt. Gen. David Petraeus to command U.S. and coalition forces in Iraq. The only trouble is, they appointed him three-and-a-half years too late. |
|
|
| The content herein, unless otherwise known to be public domain, are Copyright Space.TV Corporation. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space.TV Corp on any Web page published or hosted by Space.TV Corp. Privacy Statement |
