Subscribe free to our newsletters via your
. 24/7 Space News .

Subscribe free to our newsletters via your

Understanding Universe's Secrets with Euclid Spacecraft
by Tomasz Nowakowski for Astrowatch
Los Angeles CA (SPX) Jan 26, 2016

To achieve its ambitious scientific goals, Euclid will be equipped in two main instruments: the visible imaging instrument (VIS) and the Near Infrared Spectrometer and Photometer (NISP). These large format cameras will be used to characterize the morphometric, photometric and spectroscopic properties of galaxies.

Dark matter and dark energy are two of the most greatest mysteries of the universe, still perplexing scientists worldwide. Solving these scientific conundrums may require a comprehensive approach in which theories, computations and ground-based observations are complemented by a fleet of spacecraft studying the dark universe.

One of the space missions that could be essential to our understanding of these mysteries is European Space Agency's (ESA) Euclid probe with NASA contribution, designed to unveil the secrets of dark energy and dark matter by accurately measuring the acceleration of the universe.

"Euclid is designed primarily to help us understand the properties of dark energy. However, in doing so, it will utilize the exquisite precision only available to a space-based instrument to make measurements of dark matter over an unprecedented area of the sky. Thus, it will be a real breakthrough in our understanding of both dark matter and dark energy," Ulf Israelsson, NASA Euclid project manager, told

The spacecraft is currently in the construction phase after successfully passing its Preliminary Design Review in the Fall of 2015. It will be launched in 2020 on a Soyuz rocket from Europe's Spaceport in Kourou, French Guiana. After liftoff it will be sent into orbit around the sun-Earth L2 point located approximately 1.5 million km from our planet.

In order to help us understand dark matter and dark energy, Euclid will employ two primary scientific methods.

"The first is weak gravitational lensing, whereby the apparent shapes of background galaxies are distorted by foreground dark matter. The second is galaxy clustering, looking at the three dimensional distribution of galaxies," Jason Rhodes, NASA Euclid Deputy Project Scientist and the US Science Lead for Euclid, told SpaceFlight Insider.

The spacecraft will map the shapes, positions and movements of two billion galaxies, delivering astronomers a vast set of important data for further studies. It is expected to produce numerous deep images and spectra over at least half of the entire sky.

To achieve its ambitious scientific goals, Euclid will be equipped in two main instruments: the visible imaging instrument (VIS) and the Near Infrared Spectrometer and Photometer (NISP). These large format cameras will be used to characterize the morphometric, photometric and spectroscopic properties of galaxies.

"Euclid will have two instruments. The first is the visible imaging instrument. It will use a single very wide filter to perform photometry of visible light over a 15,000 square degree area on the sky. The second is the Near Infrared Spectrometer and Photometer. This instrument will use NASA-provided near infrared detectors to perform 3-band photometry in near infrared light over the same 15,000 square degrees as well as providing grism spectroscopy in the near infrared over the same area," Israelsson explained.

The mission that will last six years will survey the sky in 'step-and-stare' mode. In this mode the telescope points to a position on the sky and imaging and spectroscopic measurements are performed on an area of about 0.5 square degrees around this position. The wide-survey will cover 15,000 square degrees of extragalactic sky and the deep survey is expected to cover approximately 40 square degrees, consisting of patches of at least 10 square degrees which are about two magnitudes deeper than the wide-survey.

NASA made important contributions to this mission including infrared detectors for one instrument and science and data analysis.

"NASA is providing near infrared detectors and associated electronics for the NISP instrument. NASA is also developing the Euclid NASA Science Center at IPAC [Infrared Processing and Analysis Center], a node in Euclid's distributed Science Ground Segment that will process the Euclid data. The third contribution is in support of about 70 US scientists who are part of the 1,300 member Euclid Consortium," Rhodes said.


Related Links
Stellar Chemistry, The Universe And All Within It

Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks DiggDigg RedditReddit GoogleGoogle

Previous Report
How the first stars sprung to life in early universe
Notre Dame IN (SPX) Jan 25, 2016
A team of researchers has observed the brightest ultra metal-poor star ever discovered. The star is a rare relic from the Milky Way's formative years. As such, it offers astronomers a precious opportunity to explore the origin of the first stars that sprung to life within our galaxy and the universe. A Brazilian-American team including Vinicius Placco, a research assistant professor at the ... read more

Russia postpones manned Lunar mission to 2035

Audi joins Google Lunar XPrize competition

Lunar mission moves a step closer

Momentum builds for creation of 'moon villages'

Opportunity rock abrasion tool conducts two rock grinds

Opportunity Abrasion Tool Conducts Two Rock Grinds

Curiosity gets a good taste of scooped, sieved sand

Rover uses Rock Abrasion Tool to grind rocks

Voyager Mission Celebrates 30 Years Since Uranus

Engineers Mark Completion of Orion's Pressure Vessel

2016 Goals Vital to Commercial Crew Success

Space: The here-and-now frontier

China aims for the Moon with new rockets

China shoots for first landing on far side of the moon

Chinese Long March 3B to launch Belintersat-1 telco sat for Belarus

China Plans More Than 20 Space Launches in 2016

Astronaut Scott Kelly plays ping pong with water

Japanese astronaut learned Russian to link two nations

NASA, Texas Instruments Launch mISSion imaginaTIon

Water in US astronaut's helmet cuts short Briton's 1st spacewalk

Roscosmos Approves Delay of Eutelsat 9B Launch Due to Bad Weather

Assembly begins on 2nd Ariane 5 launcher for 2016

Ariane 5 is readied for an Arianespace leading customer Intelsat

EpicNG satellite installed on Ariane 5 for launch

Follow A Live Planet Hunt

Lab discovery gives glimpse of conditions found on other planets

Nearby star hosts closest alien planet in the 'habitable zone'

ALMA reveals planetary construction sites

New insights into the supercritical state of water

It's a 3-D printer, but not as we know it

Microsoft donates cloud computing 'worth $1 bn'

Research reveals mechanism for direct synthesis of hydrogen peroxide

Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

The content herein, unless otherwise known to be public domain, are Copyright 1995-2016 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news 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 Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.