Tag Archive for 'Magnetosphere'

Space Physicists Find Plasmoid in Magnetosphere of Uranus

Mar 27, 2020 by News Staff

Uranus possesses an intrinsic magnetic field that encircles the ice giant and influences the local space environment. The solar wind plasma, made up of...

Illustration of a plasma jet impact (yellow) generating standing waves at the boundary (blue) of Earth’s magnetic shield (green). Image credit: E. Masongsong, UCLA / M. Archer, QMUL / H. Hietala, UTU.

Earth’s Magnetopause Vibrates Like Giant Drum When Hit by Strong Impulses

Feb 13, 2019 by News Staff

As strong impulses strike the Earth’s magnetopause, the abrupt boundary between the planet’s magnetosphere and the surrounding plasma, ripples travel...

The four MMS spacecraft -- shown here in an artist’s concept -- have made more than 4,000 trips through the boundaries of Earth’s magnetic field. Image credit: NASA / Goddard / Conceptual Image Lab.

NASA’s MMS Mission Maps Magnetic Reconnection in Earth’s Magnetotail

Nov 20, 2018 by News Staff

NASA’s Magnetospheric Multiscale (MMS) mission consists of four identical spacecraft that orbit around Earth through the dynamic magnetic system surrounding...

This Hubble image is a composite of observations made of Saturn in early 2018 in the optical and of the auroras on Saturn’s north pole region, made in 2017. Image credit: NASA / ESA / Hubble / A. Simon, NASA’s Goddard Space Flight Center / OPAL Team / J. DePasquale, STScI / L. Lamy, Observatoire de Paris.

Hubble Captures Enormous Northern Auroras on Saturn

Aug 31, 2018 by News Staff

Viewing Saturn’s northern polar region for a period of seven months, the NASA/ESA Hubble Space telescope snapped a series of stunning images of auroras...

Our planet is surrounded by the magnetosphere, shown here in blue. As charged particles from the Sun flow around the Earth’s magnetosphere, it forms the magnetosheath, shown in yellow. Image credit: Mary Pat Hrybyk-Keith / NASA’s Goddard Space Flight Center.

NASA’s MMS Mission Discovers New Magnetic Process in Earth’s Magnetosheath Region

May 10, 2018 by News Staff

Earth is surrounded by a protective magnetic environment, the magnetosphere, which deflects a supersonic stream of charged particles from the Sun, known...

Ganymede, larger than even Mercury and Pluto, has an icy surface speckled with bright young craters overlying a mixture of older, darker, more cratered terrain laced with grooves and ridges; the large circular feature on the upper right, called Galileo Regio, is an ancient region of unknown origin; Ganymede is thought to have an ocean layer that contains more water than Earth and might contain life; like Earth’s Moon, Ganymede keeps the same face towards its central planet, in this case Jupiter; this image was taken about 20 years ago by NASA’s Galileo probe, which ended its mission by diving into Jupiter’s atmosphere in 2003; currently, NASA’s Juno spacecraft orbits Jupiter and is studying the giant planet’s internal structure, among many other attributes. Image credit: NASA / JPL / Galileo probe.

NASA Reveals New Results from Galileo’s Historic Flyby of Jupiter’s Moon Ganymede

May 1, 2018 by News Staff

On June 27, 1996, NASA’s Galileo spacecraft made humanity’s first flyby of Ganymede, Jupiter’s largest moon, discovering that it is the only moon...

This image shows how the solar wind transports ions of oxygen from the Earth’s atmosphere to the Moon. Image credit: Osaka University / NASA.

Moon Has Earth’s Oxygen, Planetary Researchers Say

Jan 2, 2018 by News Staff

A team of Japanese planetary researchers led by Osaka University’s Professor Kentaro Terada has discovered that the solar wind and Earth’s magnetic...

Georgia Tech researchers propose that a ‘switch-like’ magnetosphere exists at Uranus in both equinox and solstice seasons, where the planetary rotation drives the interchange between an open magnetosphere and a closed magnetosphere each Uranus day. Image credit: NASA / JPL-Caltech.

Uranus Has ‘Switch-Like’ Magnetosphere

Jun 27, 2017 by News Staff

A new study published in the Journal of Geophysical Research: Space Physics suggests that the magnetosphere of the ice giant Uranus gets flipped on and...

Artist’s impression of the Jovian aurora. Image credit: JAXA.

NASA’s Juno Mission Delivers Preliminary Science Results

May 26, 2017 by News Staff

NASA’s Juno mission is rewriting what planetary researchers thought they knew about Jupiter, the largest and most massive planet in our Solar System:...

This artist’s rendering shows Juno making one of its close passes over Jupiter. Image credit: NASA / JPL-Caltech.

Scientists Excited as Juno Nears Jupiter

Jul 3, 2016 by News Staff

NASA’s Jupiter-bound Juno spacecraft is on course to swing into orbit around the gas giant on Monday, July 4. This artist’s rendering shows Juno making...

NASA’s MMS Spacecraft Capture Magnetic Reconnection in Action

May 16, 2016 by News Staff

The four spacecraft of NASA’s Magnetospheric Multiscale Mission (MMS) have flown through the heart of a magnetic process that controls Earth’s space...

Photomontage of Saturn with a false-color image of UV aurora taken with Hubble’s Imaging Spectrograph on January 24, 2004, superimposed on an image of visible light taken with Hubble’s Advanced Camera for Surveys on March 22, 2004. Image credit: NASA / ESA / J. Clarke, Boston University / Z. Levay, STScI.

Scientists Find Evidence for Explosive Releases of Energy in Saturn’s Magnetosphere

Dec 1, 2015 by Natali Anderson

Planetary scientists using data from NASA’s Cassini orbiter have found direct evidence for ‘explosions’ in the magnetosphere of the gas giant Saturn. Photomontage...

The artist's concept depicts a super-Earth-size planet. Image credit: NASA Ames / JPL-Caltech.

Terrestrial Exoplanets around Low-Mass Stars Probably Have Protective Magnetospheres

Sep 29, 2015 by News Staff

Earth-mass exoplanets orbiting close to low-mass parent stars likely have magnetic fields that protect them from stellar radiation, says a duo of astronomers...

An artist’s impression of plasma tubes in the Earth’s magnetosphere. Image credit: Mats Bjorkland / ARC Centre of Excellence for All-sky Astrophysics.

Scientists Detect Plasma Tubes in Earth’s Magnetosphere

Jun 5, 2015 by News Staff

Scientists using the Murchison Widefield Array in the Western Australian desert have confirmed the existence of tubular plasma structures between the plasmasphere...

Kelvin-Helmholtz instability clouds. Image credit: Astronautilus, rodjonesphotography.co.uk / CC BY 2.0.

Kelvin-Helmholtz Waves Perturb Earth’s Magnetosphere, New Study Shows

May 12, 2015 by News Staff

According to a new study published in the journal Nature Communications, the underlying physical process that creates ‘breaking wave’ cloud patterns...

New observations by NASA’s twin Van Allen Probes show that particles in the radiation belts surrounding Earth are accelerated by a local kick of energy, helping to explain how these particles reach speeds of 99 percent the speed of light (G. Reeves / M. Henderson)

Scientists Find Electron Acceleration within Van Allen Belts

Jul 26, 2013 by Natali Anderson

U.S. researchers believe they have answered a long-standing question about how electrons in the Earth’s Van Allen radiation belts can suddenly become...

Two giant swaths of radiation, known as the Van Allen Belts, surrounding Earth were discovered in 1958. New observations from the Van Allen Probes showed that a third belt can sometimes appear (NASA / Van Allen Probes / Goddard Space Flight Center)

Mysterious Electron Storage Ring Found in Earth’s Magnetosphere

Mar 7, 2013 by News Staff

U.S. researchers have discovered a long-lived zone of high-energy electrons stored between Earth’s Van Allen radiation belts. Two giant swaths of radiation,...