Mystery of Auroral Beads Uncovered With NASA’s THEMIS Spacecraft
A special type of aurora, draped east-west across the night sky like a glowing pearl necklace, is helping scientists better understand the science of auroras…
THEMIS
Mars Odyssey Observes Martian Moons Phobos and Deimos
Phobos and Deimos, the moons of Mars, are seen in this movie put together from 19 images taken by the Mars Odyssey orbiter’s Thermal Emission…
Astronomers Discover the Missing Link Responsible for Pulsating Auroras
Sometimes on a dark night near the poles, the sky pulses a diffuse glow of green, purple and red. Unlike the long, shimmering veils of…
Surfer-Shaped Waves Discovered at the Boundaries of Near-Earth Space
Two published papers reveal Kelvin-Helmholtz waves at the boundaries of near-Earth space, showing that they can appear under any conditions and are much more prevalent…
Scientists Discover New Process that Protects Earth from Space Weather
A newly published study shows that in certain circumstances a pool of dense particles normally circling Earth can extend a long arm out to meet…
NASA’s THEMIS Mission Tracks Space Weather & the Magnetosphere
Launched in 2007, the THEMIS mission has helped highlight a number of crucial details about what causes space weather events and has dramatically improved our…
A Decade Worth of Discovery from THEMIS
Ten years and counting. The Thermal Emission Imaging System onboard NASA’s Mars Odyssey orbiter has taken nearly 500,000 images and circled Mars nearly 45,000 times…
NASA’s THEMIS Satellite Records Effect of Geomagnetic Storms on Radiation Belts
Scientists are studying the Van Allen Radiation belts to gain a better understanding about the radiation encircling the Earth. It was once feared that these…