Articles tagged with Auroras
The IMAGE far-ultraviolet camera has captured breathtaking auroras visible from Georgia, Florida, and Texas, revealing minute details in their structure and shape. The camera's ability to image invisible ion auroras has greatly expanded scientists' understanding of the Earth's magnetosphere.
Scientists measure solar wind gusts that squeeze the Earth's magnetosphere, triggering brightening in the aurora borealis. This phenomenon can lead to global magnetic storms, potentially disrupting communications and power supplies.
Spann will present the latest information from the UltraViolet Imager project, which studies how space storms develop and affect Earth's space environment. The presentation aims to provide insights into directly driven auroral signatures resulting from interplanetary pressure points.
Scientists observed solar activity directly affecting Earth's outer atmosphere, causing auroral light displays. The Polar satellite measured the effects of a massive solar storm that pumped 200 gigawatts of energy into Earth's atmosphere.
A new imaging spectrometer developed at the University of Illinois helps scientists study auroras and their effects on Earth's atmosphere. The instrument characterizes spatial distribution of auroral emissions across different altitudes.
Researchers have developed new methods to visualize the magnetosphere, a complex region surrounding Earth, by analyzing images of charged particles. The technique uses neutral atoms in space to create detailed maps of the magnetosphere's structure and behavior.
Researchers have found a small gap in the auroral oval, which appears about 7% of the time between 10pm and midnight. The discovery was made using data from the Ultraviolet Imager aboard the Polar spacecraft and suggests that changes in the interplanetary magnetic field may be responsible.
Scientists observed unusual transpolar auroral arcs during a geomagnetic storm in January 1997, contradicting existing models of the magnetosphere. The phenomenon was caused by energy propagating towards the dayside along the arc, indicating dynamic events in the magnetosphere.
Astronomers produce high-resolution images of Jupiter's auroras, revealing details about the planet's atmosphere and its moons. The new images, made possible by improved instruments on the Hubble Space Telescope, show comet-shaped swaths of light and a faint electromagnetic footprint from Ganymede.
Astronomers have detected a giant solar eruption with particles hurtling towards the Earth. The NASA POLAR spacecraft will monitor the Earth's aurora in real-time, capturing enhanced activity on Wednesday afternoon.
Researchers will monitor auroral displays simultaneously from space, jet aircraft, and the ground to gain detailed measurements of the northern lights. The Fast Auroral Snapshot (FAST) Explorer satellite guides this three-dimensional study as it gathers data about the aurora while orbiting high above the polar north.
Astronomers have detected a thin oxygen atmosphere on Ganymede, the largest of Jupiter's moons. The presence of this atmosphere is similar to that of Earth and Jupiter itself, with evidence suggesting polar aurorae created by charged particles colliding with atmospheric gases.
Researchers at Johns Hopkins University Applied Physics Laboratory find auroras occur predominantly in darkness, between sunset and midnight, and mainly during spring, winter, and fall months. Their study provides strong support for an existing theory explaining aurora formation, which correlates to ionospheric electrical conductivity.