Space

August 9, 2012

New NASA mission ready to brave Earth’s radiation belts

NASA’s Radiation Belt Storm Probes mission will send two spacecraft into the harsh environment of our planet’s radiation belts. Final preparations have begun for launch Aug. 23, from Florida’s Space Coast.

The RBSP spacecraft are designed to fly and operate in the heart of the most hazardous regions of near-Earth space to collect crucial data. The data will help researchers develop an understanding of the Van Allen radiation belts, two rings of very high energy electrons and protons that can pose hazards to human and robotic explorers.

“At the end of this month we will turn our attention from planet Mars to planet Earth, both immersed in the atmosphere of our sun,” said Barbara Giles, director of NASA’s Heliophysics Division. “RBSP will further explore the connection of solar variability and its impacts on Earth’s radiation belts.”

RBSP will help scientists understand how the invisible radiation belts – named for James Van Allen, who discovered them – behave and react to changes in the sun, thereby contributing to Earth’s space weather. Space weather is caused in great part by the sun’s influence on Earth and near-Earth space, including solar events such as giant eruptions of solar material called coronal mass ejections.

“The dramatic dynamics of Earth’s radiation belts caused by space weather are highly unpredictable,” said Barry Mauk, RBSP project scientist at the Johns Hopkins University Applied Physics Laboratory in Laurel, Md. “One of the fundamental objectives of the RBSP mission is to use Earth’s magnetosphere as a natural laboratory to understand generally how radiation is created and evolves throughout the universe. There are many mysteries that need to be resolved.”

Space weather fluctuations can increase radiation exposure for pilots and passengers during polar aircraft flights. They also can disable satellites, cause power grid failures, and disrupt the Global Positioning System, television and telecommunications signals. Understanding the science of space weather will lead to better space weather predictions, which in turn will allow us to better manage and protect our technological infrastructure in space and on the ground.

The spacecraft are atop a United Launch Alliance Atlas V rocket currently being prepared to lift off from Cape Canaveral Air Force Station, Fla.

“Everything is ready and prepared for RBSP to launch as scheduled,” said Richard Fitzgerald, RBSP project manager at APL. “Both the twin spacecraft and the entire RBSP team are eager to begin their exploration of one of the most dangerous parts of space near our planet.”

The mission will last two years. The spacecraft, carrying the best and most comprehensive instrumentation ever sent into the radiation belts, will fly through surging and swelling belts of energized particles that would damage ordinary spacecraft. By using a pair of probes flying in highly elliptical orbits, scientists will be able to study the radiation belts over space and time, learn how particles within the belts are produced and behave during space weather events, and what mechanisms drive the acceleration of the particles.

RBSP is part of NASA’s Living With a Star Program to explore aspects of the connected sun-Earth system that directly affect life and society. LWS is managed by the agency’s Goddard Space Flight Center in Greenbelt, Md. APL built the RBSP spacecraft and will manage the mission for NASA.

For more information about NASA’s RBSP mission, visit http://www.nasa.gov/rbsp.




All of this week's top headlines to your email every Friday.


 
 

 
ATK

ATK completes installation of world’s largest solid rocket motor for ground test

ATK The first qualification motor for NASA’s Space Launch Systems booster is installed in ATK’s test stand in Utah – ready for a March 11 static-fire test. NASA and ATK have completed installing the first Spac...
 
 
ULA photograph

Third Lockheed Martin-built MUOS satellite launched, responding to commands

ULA photograph The U.S. Air Force’s 45th Space Wing successfully launched the third Mobile User Objective System satellite, built by Lockheed Martin, for the U.S. Navy at 8:04 p.m. Jan. 20, 2015, from Launch Complex 41 at...
 
 
ULA photograph

ULA successfully launches Navy’s Mobile User Objective System-3

ULA photograph The U.S. Air Force’s 45th Space Wing successfully launched the third Mobile User Objective System (MUOS) satellite, built by Lockheed Martin, for the U.S. Navy at 8:04 p.m. Jan. 20, 2015, from Launch Comple...
 

 

Aerojet Rocketdyne Propulsion supports launch, flight of third MUOS satellite

Aerojet Rocketdyne played a critical role in successfully placing the third of five planned Mobile User Objective System (MUOS-3) satellites, designed and built by Lockheed Martin, into orbit for the U.S. Navy. The mission was launched from Cape Canaveral Air Force Station in Florida aboard a United Launch Alliance Atlas V rocket, with five Aerojet...
 
 
LM-MUOS-satellite

U.S. Navy poised to Launch Lockheed Martin-built MUOS-3 satellite

The U.S. Navy and Lockheed Martin are ready to launch the third Mobile User Objective System satellite, MUOS-3, from Cape Canaveral Air Force Station, Fla., Jan. 20 aboard a United Launch Alliance Atlas V rocket. The launch win...
 
 

NASA, NOAA find 2014 warmest year in modern record

https://www.youtube.com/embed/-ilg75uJZZU?enablejsapi=1&rel=0 The year 2014 ranks as Earth’s warmest since 1880, according to two separate analyses by NASA and National Oceanic and Atmospheric Administration scientists. The 10 warmest years in the instrumental record, with the exception of 1998, have now occurred since 2000. This trend continues a long-term warming of the planet, acc...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>