Featured Research

from universities, journals, and other organizations

Imaging The Sun And Solar Wind In 3-D

Date:
November 15, 2005
Source:
NASA/Goddard Space Flight Center--EOS Project Science Office
Summary:
The two Solar TErrestrial RElations Observatory (STEREO) spacecraft arrive at the NASA Goddard Space Flight Center in Greenbelt, Md. on Nov. 9 for major testing as they near completion. Set to launch in Spring 2006, STEREO is the first mission to image the sun and solar wind in 3-D. This new view is critical to improving our understanding of space weather and its impact to space and on Earth systems.

After solar array deployment tests on Observatory B (the one that will be placed 'behind' Earth in its orbit around the sun), APL STEREO technicians inspect solar blankets covering the hinges that connect the solar arrays to the spacecraft.
Credit: NASA/Johns Hopkins University Applied Physics Laboratory

The two Solar TErrestrial RElations Observatory (STEREO) spacecraft arrive at the NASA Goddard Space Flight Center in Greenbelt, Md. on Nov. 9 for major testing as they near completion. Set to launch in Spring 2006, STEREO is the first mission to image the sun and solar wind in 3-D. This new view is critical to improving our understanding of space weather and its impact to space and on Earth systems.

Related Articles


During its two-year mission, the two nearly identical spacecraft will explore the origin, evolution, and interplanetary consequences of coronal mass ejections (CMEs), the most violent explosions in our solar system. When directed at Earth, these billion-ton eruptions can disrupt satellites, radio communications, and power systems. In addition, energetic particles associated with CMEs are a serious hazard to spacecraft and astronauts.

"The arrival of both observatories at GSFC is a critical milestone for the STEREO project. The fully integrated observatories look great and represent a lot of hard work from a very dedicated APL/GSFC team. The next few months will be exciting as we put them through a rigorous space simulation test program in preparation for launch," said Mark Jarosz, Observatory Manager for the STEREO Project at NASA Goddard.

Upon arrival, the spacecraft will undergo multiple mechanical assembly and electrical tests to verify readiness for launch both in a stacked configuration, and on their own. Tests will simulate launch noise, space temperature variations, launch vibrations and validate the explosive nut used to separate the two satellites in orbit. Engineers also plan to deploy the high gain antenna, and ensure that radio emissions from the satellites don't interfere with other sensitive scientific instruments like the S/WAVES radio astronomy experiment.

STEREO's launch window extends from April through June 2006 at the Cape Canaveral Air Force Station (CCAFS), Fla. Truly an international effort, its instruments were built and shipped from the United States and several European countries. The observatory integration was performed at The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md. Testing is being conducted both at APL and at NASA.

"STEREO is going to help us answer some of the biggest questions about the sun. Not only will we see if CMEs are moving toward Earth, but we'll see how they move through the solar system," said Dr. Michael Kaiser, Project Scientist for STEREO at the Goddard Space Flight Center.

###

STEREO, managed by the Goddard Space Flight Center, is the third mission selected for NASA's Solar-Terrestrial Probe (STP) Program. The Johns Hopkins University Applied Physics Laboratory (APL) will maintain command and control of the spacecraft throughout the mission, while NASA tracks and receives the data, determines the orbit, and coordinates the science results.

For more information about STEREO on the Internet, visit: http://www.nasa.gov/stereo.



Story Source:

The above story is based on materials provided by NASA/Goddard Space Flight Center--EOS Project Science Office. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Goddard Space Flight Center--EOS Project Science Office. "Imaging The Sun And Solar Wind In 3-D." ScienceDaily. ScienceDaily, 15 November 2005. <www.sciencedaily.com/releases/2005/11/051115090942.htm>.
NASA/Goddard Space Flight Center--EOS Project Science Office. (2005, November 15). Imaging The Sun And Solar Wind In 3-D. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2005/11/051115090942.htm
NASA/Goddard Space Flight Center--EOS Project Science Office. "Imaging The Sun And Solar Wind In 3-D." ScienceDaily. www.sciencedaily.com/releases/2005/11/051115090942.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Space & Time News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Spokesman: 'NORAD Ready to Track Santa'

Spokesman: 'NORAD Ready to Track Santa'

AP (Dec. 19, 2014) Pentagon spokesman Rear Adm. John Kirby said that NORAD is ready to track Santa Claus as he delivers gifts next week. Speaking tongue-in-cheek, he said if Santa drops anything off his sleigh, "we've got destroyers out there to pick them up." (Dec. 19) Video provided by AP
Powered by NewsLook.com
NASA's Planet-Finding Kepler Mission Isn't Over After All

NASA's Planet-Finding Kepler Mission Isn't Over After All

Newsy (Dec. 18, 2014) More than a year after NASA declared the Kepler spacecraft broken beyond repair, scientists have figured out how to continue getting useful data. Video provided by Newsy
Powered by NewsLook.com
Rover Finds More Clues About Possible Life On Mars

Rover Finds More Clues About Possible Life On Mars

Newsy (Dec. 17, 2014) NASA's Curiosity rover detected methane on Mars and organic compounds on the surface, but it doesn't quite prove there was life ... yet. Video provided by Newsy
Powered by NewsLook.com
Evidence of Life on Mars? NASA Rover Finds Methane, Organic Chemicals

Evidence of Life on Mars? NASA Rover Finds Methane, Organic Chemicals

Reuters - US Online Video (Dec. 16, 2014) NASA's Mars Curiosity rover finds methane in the Martian atmosphere and organic chemicals in the planet's soil, the latest hint that Mars was once suitable for microbial life. Linda So reports. Video provided by Reuters
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:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

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