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Latest Magnetosphere of Jupiter Stories

ESA Finds High-Energy Particles Charged In Polar Cusps
2012-06-08 04:46:56

Data gathered by several European Space Agency (ESA) spacecraft suggests that high-energy particles which fill cavities within the Earth's magnetic field are accelerated locally within the cusps themselves as they cross through areas characterized by different electric potential, the organization announced earlier this week. In a Tuesday announcement, the ESA said that the information, which was gathered during the Cluster mission in February 2003, shows that the particles are accelerated...

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2011-07-05 08:45:00

High speed plasma flows, often referred to as jets, are extremely common across the Universe. Such jets are observed in Earth's magnetosphere, in solar flares, and near various objects powered by black holes. New insights into the processes that modify these streams of ionized particles have been provided by rare in situ measurements of plasma flows made by ESA's Cluster spacecraft. Most visible matter in the Universe exists as plasma, an extremely hot gas in which atoms have been stripped of...

2010-10-27 15:23:00

GREENBELT, Md., Oct. 27 /PRNewswire-USNewswire/ -- The magnetometers developed at NASA's Goddard Space Flight Center in Greenbelt, Md., for the Juno mission to Jupiter were delivered recently to Lockheed Martin in Denver, Colo. Designed and built by an in-house team of Goddard scientists, engineers and technicians, this instrument will map the planet's magnetic field with great accuracy and observe its variations over time. Each of the two vector magnetometers carries with it a pair of...

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2008-03-17 15:50:00

Scientists have observed unexpected luminous spots on Jupiter caused by its moon Io.Besides displaying the most spectacular volcanic activity in the solar system, Io causes auroras on its mother planet that are similar to the Northern Lights on Earth. The auroral emissions linked to the volcanic moon are called the Io footprint. From previous studies, researchers had found the Io footprint to be a bright spot that is often followed by other auroral spots. Those spots are typically located...

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2005-06-09 19:10:00

ESA's Mars Express spacecraft has for the first time ever detected an aurora on Mars. This aurora is of a type never previously observed in the Solar System. Observations by the SPICAM instrument (SPectroscopy for the Investigations and the Characteristics of the Atmosphere on Mars) taken on 11 August 2004, revealed light emissions now interpreted as an aurora. Aurorae are spectacular displays often seen at the highest latitudes on Earth. On our planet, as well as on the giant planets...