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NASA’s Van Allen Probes Begin Final Phase of Exploration in Earth’s Radiation Belts

February 13, 2019

Two tough, resilient, NASA spacecraft have been orbiting Earth for the past six and a half years, flying…
MarCO Makes Space for Small Explorers

September 14, 2018

Twenty years ago, CubeSats — a class of boxy satellites small enough to fit in a backpack —…
The Case of the Relativistic Particles Solved with NASA Missions

May 30, 2018

Encircling Earth are two enormous rings — called the Van Allen radiation belts — of highly energized ions…
FIREBIRD II and NASA Mission Locate Whistling Space Electrons’ Origins

November 19, 2017

Scientists have long known that solar-energized particles trapped around the planet are sometimes scattered into Earth’s upper atmosphere…
NASA’s Van Allen Probes Survive Extreme Radiation Five Years On

September 2, 2017

Most satellites, not designed to withstand high levels of particle radiation, wouldn’t last a day in the Van…
NASA Mission Surfs through Waves in Space to Understand Space Weather

July 25, 2017

The space surrounding our planet is full of restless charged particles and roiling electric and magnetic fields, which…
NASA Listens in as Electrons Whistle While They Work

July 18, 2017

Space is not empty, nor is it silent. While technically a vacuum, space nonetheless contains energetic charged particles,…
NASA’s Van Allen Probes Spot Man-Made Barrier Shrouding Earth

May 18, 2017

Humans have long been shaping Earth’s landscape, but now scientists know we can shape our near-space environment as…
NASA Spacecraft Investigate Clues in Radiation Belts

March 28, 2017

High above Earth, two giant rings of energetic particles trapped by the planet’s magnetic field create a dynamic…
10 Years Strong with NASA’s THEMIS Mission

February 22, 2017

On Feb. 17, 2017, NASA’s Time History of Events and Macroscale Interactions during Substorms, or THEMIS, mission marked…
NASA’s Van Allen Probes Catch Rare Glimpse of Supercharged Radiation Belt

August 16, 2016

Our planet is nestled in the center of two immense, concentric doughnuts of powerful radiation: the Van Allen…
NASA Mini-Balloon Mission Maps Migratory Magnetic Boundary

May 21, 2016

During the Antarctic summer of 2013-2014, a team of researchers released a series of translucent scientific balloons, one…
NASA’s Van Allen Probes Reveal Long-term Behavior of Earth’s Ring Current

May 20, 2016

New findings based on a year’s worth of observations from NASA’s Van Allen Probes have revealed that the…
NASA’s Van Allen Probes Revolutionize View of Radiation Belts

January 20, 2016

About 600 miles from Earth’s surface is the first of two donut-shaped electron swarms, known as the Van…
Plasma shield: Earth’s “plasmaspheric hiss” protects against a harmful radiation belt

November 27, 2014

High above Earth’s atmosphere, electrons whiz past at close to the speed of light. Such ultrarelativistic electrons, which…
Star Trek-like invisible shield found thousands of miles above Earth

November 27, 2014

A team led by the University of Colorado Boulder has discovered an invisible shield some 7,200 miles above…
NASA’s Van Allen Probes Spot an Impenetrable Barrier in Space

November 27, 2014

Two donuts of seething radiation that surround Earth, called the Van Allen radiation belts, have been found to…
NASA Probes Studying Earth’s Radiation Belts to Celebrate Two Year Anniversary

September 1, 2014

NASA’s twin Van Allen Probes will celebrate on Saturday two years of studying the sun’s influence on our…
Van Allen Probes Show How to Accelerate Electrons

July 16, 2014

One of the great, unanswered questions for space weather scientists is just what creates two gigantic donuts of…
Update: NASA Spacecraft Reveal New “Zebra Stripes” Structure in Earth’s Inner Radiation Belt

March 20, 2014

Scientists have discovered a new, persistent structure in Earth’s inner radiation belt using data from the twin NASA…
Van Allen Probes Reveal Zebra Stripes in Space

March 20, 2014

Scientists have discovered a new, persistent structure in one of two radiation belts surrounding Earth. NASA’s twin Van…
New NASA Van Allen Probes Observations Helping To Improve Space Weather Models

March 10, 2014

Using data from NASA’s Van Allen Probes, researchers have tested and improved a model to help forecast what’s…
Van Allen Probes Shed Light on Decades-old Mystery

December 23, 2013

New research using data from NASA’s Van Allen Probes mission helps resolve decades of scientific uncertainty over the…
Scientists solve a decades-old mystery in the Earth’s upper atmosphere

December 19, 2013

New research published in the journal Nature resolves decades of scientific controversy over the origin of the extremely…
New Observations from NASA’s Van Allen Probes Offer Solution to Radiation Belts Mystery

December 5, 2013

In 1958, scientists discovered two gigantic belts of radiation around Earth that have provided tantalizing mysteries to researchers…
Van Allen Probes Pinpoint Driver of Speeding Electrons

July 29, 2013

An artist’s rendering of a mechanism within the Van Allen radiation belts that can accelerate electrons to satellite-killing…
Van Allen Probes Discover Particle Accelerator in the Heart of Earth’s Radiation Belts

July 26, 2013

Scientists have discovered a massive particle accelerator in the heart of one of the harshest regions of near-Earth…
NASA’s Van Allen Probes Discover a Surprise Circling Earth

March 1, 2013

After most NASA science spacecraft launches, researchers wait patiently for months as instruments on board are turned on…
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