Featured Research

from universities, journals, and other organizations

Last command sent to Planck space telescope

Date:
October 28, 2013
Source:
NASA/Jet Propulsion Laboratory
Summary:
The Planck space telescope has been turned off after spending nearly 4.5 years soaking up the relic radiation from the Big Bang and studying the evolution of stars and galaxies throughout the history of the universe.

The oldest light in the universe, called the cosmic microwave background, as observed by the Planck space telescope is shown in the oval sky map. An artist's concept of Planck is next to the map.
Credit: ESA and the Planck Collaboration - D. Ducros

The Planck space telescope has been turned off after spending nearly 4.5 years soaking up the relic radiation from the Big Bang and studying the evolution of stars and galaxies throughout the history of the universe.

Planck is a European Space Agency (ESA) mission with significant contributions from NASA.

Mission controllers at ESA's operations center in Darmstadt, Germany sent the final command to the Planck satellite today, marking the end of operations for what some like to call a "time machine."

"We are only part way through the analysis of the data and have already learned a huge amount about the universe from the Milky Way galaxy, to the observable edge, and beyond to the first tiny fraction of a second after the Big Bang," said U.S. Planck Project Scientist Charles Lawrence of NASA's Jet Propulsion Laboratory, Pasadena, Calif.

Launched in 2009, Planck was designed to tease out the faintest relic radiation from the Big Bang, called the cosmic microwave background. This radiation preserves a picture of the universe as it was about 380,000 years after its birth, and provides details of the initial conditions that led to the universe we live in today.

Results from the mission presented by scientists in March 2013 provided revised values for the relative proportions of the ingredients of the universe, namely normal matter that makes up stars and galaxies; dark matter, which has so far only been detected indirectly by its gravitational influence; and dark energy, a mysterious force thought to be responsible for accelerating the expansion of the universe. The NASA news release about these results is at http://www.jpl.nasa.gov/news/news.php?release=2013-109 .

JPL built critical components of Planck's science instruments, including bolometers for the mission's high-frequency instrument; a 20-Kelvin (minus-424-degree-Fahrenheit) cryocooler for both the low- and high-frequency instruments; and amplifier technology for the low-frequency instrument.

But cooling instruments to these extreme temperatures cannot be maintained forever and, indeed, the High Frequency Instrument exhausted its liquid helium coolant in January 2012, just as expected.

The Low Frequency Instrument meanwhile continued to operate at somewhat higher temperatures using the remaining two coolers, and it observed the sky until Oct. 3. After conducting post-science activities, it was manually switched off Oct. 19.

"Planck is a model for international cooperation in space. Both Europe and the U.S. contributed enabling new technologies, giving Planck unprecedented scientific capability," said Ulf Israelsson, the U.S. Planck Project Manager at JPL.

Read the full ESA news release at: http://www.esa.int/Our_Activities/Space_Science/Planck/Last_command_sent_to_ESA_s_Planck_space_telescope .

Planck is a European Space Agency mission, with significant participation from NASA. NASA's Planck Project Office is based at JPL. JPL contributed mission-enabling technology for both of Planck's science instruments. European, Canadian and U.S. Planck scientists work together to analyze the Planck data. More information is online at http://www.nasa.gov/planck, http://www.esa.int/planck and http://planck.caltech.edu .


Story Source:

The above story is based on materials provided by NASA/Jet Propulsion Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Jet Propulsion Laboratory. "Last command sent to Planck space telescope." ScienceDaily. ScienceDaily, 28 October 2013. <www.sciencedaily.com/releases/2013/10/131028140504.htm>.
NASA/Jet Propulsion Laboratory. (2013, October 28). Last command sent to Planck space telescope. ScienceDaily. Retrieved August 2, 2014 from www.sciencedaily.com/releases/2013/10/131028140504.htm
NASA/Jet Propulsion Laboratory. "Last command sent to Planck space telescope." ScienceDaily. www.sciencedaily.com/releases/2013/10/131028140504.htm (accessed August 2, 2014).

Share This




More Space & Time News

Saturday, August 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Study Says The Moon Was Deformed Early In Its History

New Study Says The Moon Was Deformed Early In Its History

Newsy (July 31, 2014) Scientists say when the moon was young, it was deformed by the Earth's gravitational pull, which gave it a lemon-like shape. Video provided by Newsy
Powered by NewsLook.com
Supply Ship Takes Off for International Space Station

Supply Ship Takes Off for International Space Station

AFP (July 30, 2014) The European Space Agency's fifth Automated Transfer Vehicle (ATV-5) is takes off to the International Space Station on an Ariane 5 rocket from French Guiana. Duration: 00:34 Video provided by AFP
Powered by NewsLook.com
Raw: Rocket Launches Into Space With Cargo Ship

Raw: Rocket Launches Into Space With Cargo Ship

AP (July 30, 2014) Arianespace launched a rocket Tuesday from French Guiana carrying a robotic cargo ship to deliver provisions to the International Space Station. (July 30) Video provided by AP
Powered by NewsLook.com
In Virginia, the Rise of a New Space Coast

In Virginia, the Rise of a New Space Coast

AP (July 30, 2014) Every summer, tourists make the pilgrimage to Chincoteague Island, Va. to see wild ponies cross the Assateague Channel. But, it's the rockets sending to supplies to the International Space Station that are making this a year-round destination. (July 30) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins