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New research unlocks clues about Earth’s magnetic field


Deep within Earth, swirling liquid iron generates our planet’s protective magnetic field. This magnetic field is invisible but…
NASA’s SDO Sees New Kind of Magnetic Explosion on Sun

December 18, 2019

NASA’s Solar Dynamics Observatory has observed a magnetic explosion the likes of which have never been seen before.…
Revealing the Physics of the Sun with Parker Solar Probe

December 12, 2019

Nearly a year and a half into its mission, Parker Solar Probe has returned gigabytes of data on…
Parker probe traces solar wind to its source on sun’s surface

December 5, 2019

A year ago, NASA’s Parker Solar Probe flew closer to the sun than any satellite in history, collecting…
First NASA Parker Solar Probe Results Reveal Surprising Details About Our Sun

December 5, 2019

The Sun is revealing itself in dramatic detail and shedding light on how other stars may form and…
Voyager 2 reaches interstellar space

November 5, 2019

Voyager 1 has a companion in the realm of the stars. Researchers at the University of Iowa report that…
One Year, 2 Trips Around Sun for NASA’s Parker Solar Probe

August 13, 2019

Since NASA’s Parker Solar Probe launched on Aug. 12, 2018, Earth has made a single trip around the…
NASA’s MMS Finds First Interplanetary Shock

August 10, 2019

The Magnetospheric Multiscale mission — MMS — has spent the past four years using high-resolution instruments to see…
Four Berkeley satellites could be exploring Mars and Earth by 2022

July 10, 2019

If all goes as planned, two teams of scientists and engineers at UC Berkeley’s Space Sciences Laboratory will…
Colorful clouds formed by the release of vapors from the two AZURE rockets allow scientist to measure auroral winds. Credits: NASA/Lee Wingfield
NASA Launches Two Rockets Studying Auroras

April 10, 2019

NASA successfully launched the Auroral Zone Upwelling Rocket Experiment or AZURE mission on April 5 from the Andøya…
Jupiter’s Atmosphere Heats up under Solar Wind

April 9, 2019

New Earth-based telescope observations show that auroras at Jupiter’s poles are heating the planet’s atmosphere to a greater…
Sounding Rocket Mission Will Trace Auroral Winds

April 9, 2019

Editor’s note, April 8, 2019: The Auroral Zone Upwelling Rocket Experiment or AZURE mission was successfully conducted April…
NASA Mission Reveals Origins of Moon’s ‘Sunburn’

February 28, 2019

Every object, planet or person traveling through space has to contend with the Sun’s damaging radiation — and…
Solar Tadpole-Like Jets Seen With NASA’S IRIS Add New Clue to Age-Old Mystery

February 20, 2019

Scientists have discovered tadpole-shaped jets coming out of regions with intense magnetic fields on the Sun. Unlike those…
INNER CORE, THEN AND NOW: Earth’s magnetic field is generated in its liquid iron core via a geodynamo. Researchers believe a weak geodynamo—and a weak magnetic shield—formed early in Earth’s history, but decreased for the next several billion years until a critical point 565 million years ago (left image). The researchers conjecture it was at this point in the geological time scale that the inner core began to form, increasing the strength of the geodynamo and the magnetic field (right image). Image credit: University of Rochester illustration / Michael Osadciw
Earth’s inner core is much younger than we thought

February 1, 2019

One enduring mystery about Earth is the age of its solid inner core. Researchers have long recognized that…
Preparing for Discovery With NASA’s Parker Solar Probe

December 13, 2018

Weeks after Parker Solar Probe made the closest-ever approach to a star, the science data from the first…
New Insights on Comet Tails Are Blowing in the Solar Wind

November 6, 2018

Engineers and scientists gathered around a screen in an operations room at the Naval Research Laboratory in Washington,…
JPL Roles in NASA’s Sun-Bound Parker Solar Probe

August 28, 2018

The navigation for NASA’s Parker Solar Probe is led by the agency’s Jet Propulsion Laboratory in Pasadena, California,…
How Scientists Predicted Corona’s Appearance During Aug. 21, 2017, Total Solar Eclipse

August 28, 2018

It was Aug. 14, 2017, just one week before the Moon would cross paths with the Sun and…
Spacecraft to Speed Through Sun’s Atmosphere and Snag Solar Wind

August 18, 2018

One of these mysteries has to do with high-speed solar particles that zip toward Earth at close to…
Meet ISʘIS, heading to touch the sun

August 2, 2018

McComas, a professor of astrophysical sciences and the vice president of the Princeton Plasma Physics Laboratory, is the principal investigator for…
Parker Solar Probe and the Birth of the Solar Wind

July 31, 2018

This summer, humanity embarks on its first mission to touch the Sun: A spacecraft will be launched into…
NASA’s MAVEN Spacecraft Finds That “Stolen” Electrons Enable Unusual Aurora on Mars

July 24, 2018

Auroras appear on Earth as ghostly displays of colorful light in the night sky, usually near the poles.…
Stolen electrons key to unusual Mars aurora

July 23, 2018

Auroras appear on Earth as ghostly displays of colorful light in the night sky, usually near the poles.…
Reconnection tames the turbulent magnetic fields around Earth

May 14, 2018

When the solar wind – which is really a driving rain of charged particles from the sun –…
Solar Eruptions Could Electrify Martian Moons

October 19, 2017

Powerful solar eruptions could electrically charge areas of the Martian moon Phobos to hundreds of volts, presenting a…
The moving Martian bow shock

August 23, 2017

A Lancaster physicist has led an international study, based on data from the European Space Agency Mars Express…
Researcher Identifies Key Differences in Solar Wind Models

May 15, 2017

The challenge of predicting space weather, which can cause issues with telecommunications and other satellite operations on Earth,…
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…
Rosetta’s last words: science descending to a comet

December 16, 2016

ESA’s Rosetta completed its incredible mission on 30 September, collecting unprecedented images and data right until the moment…
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