. | . |
NASA's extends IRIS Space Observatory for deeper look at the Sun by Staff Writers Palo Alto CA (SPX) Sep 22, 2016
Delivering the most detailed images of the sun's lower atmosphere ever recorded from space, the Interface Region Imaging Spectrograph (IRIS), built and operated by Lockheed Martin for NASA, has received more time to deliver groundbreaking space science. A recent $19.4 million contract extends Lockheed Martin's support for the orbiting observatory through September 2018, with a further extension possible through September 2019. "IRIS has taken more than 24 million images or spectral measurements of the sun since its launch three years ago, and it has led to more than 115 scientific papers," said Dr. Bart De Pontieu, IRIS science lead at Lockheed Martin's Advanced Technology Center. "In this new extension, IRIS will be able to study a wide range of phenomena, including the source regions of fast solar wind, a stream of charged particles that continuously emanates from the sun at speeds of 1,000 km/s and fills the space around the Earth." Scientists at NASA, Lockheed Martin and other institutions around the world have used IRIS to make exciting discoveries about what causes the heating of the solar atmosphere and how solar flares are triggered and release magnetic energy. The observatory views only a small part of the sun at any time, but through careful planning by the IRIS science planning team, IRIS was able to catch nine of the largest flares (X-class) and almost 100 of the second largest class of flares (M-class) and numerous weaker C-class flares. NASA continues to fund several solar science programs designed, built and operated by Lockheed Martin. Both the Atmospheric Imaging Assembly instrument onboard the Solar Dynamics Observatory and the Solar Optical Telescope onboard the Hinode satellite received extensions, as well. The ATC also has experience building instruments to study the Earth, a lineage that includes the Earth's new "selfie" camera, EPIC, and newer concepts to study carbon levels and other environmental phenomena. The IRIS program will now move into a period studying the tail end of the solar activity cycle, which just went through a period of maximum activity. Some of the largest flares and most powerful coronal mass ejections occur during this phase of the solar cycle. In the next few years IRIS will also focus on: + Using IRIS observations for more specific computer models that reveal what heats the sun's chromosphere, a layer of the Sun's atmosphere that is responsible for most of the ultraviolet light that we receive on Earth. + Coordinated, highly complementary observations with a slew of ground-based telescopes that are coming online with powerful new instrumentation such as the German GREGOR telescope, the Swedish Solar Telescope in the Canary Islands and Big Bear Solar Observatory, California. + The first solar observing campaigns newly approved for the large, international radio-telescope in Chile called ALMA. Coordinated observations of ALMA and IRIS will provide a new window into what drives the dynamics and heating of the low solar atmosphere.
Related Links Lockheed Martin Solar Science News at SpaceDaily
|
|
The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - 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. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. 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. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us. |