From long jets to massive explosions of solar material and energy, eruptions on the sun come in many shapes and sizes. Scientists now propose that a universal mechanism can explain the whole spectrum of solar eruptions.
New data from three NASA missions show that the heliosphere — the bubble of the Sun’s magnetic influence that surrounds the inner solar system — may be much more compact and rounded than previously thought.
Storms from the sun can affect our power grids, railway systems and underground pipelines. Now scientists and engineers from NASA have assessed the state of science surrounding space weather.
A composite image of Uranus by Voyager 2 and two different observations made by Hubble shows one for the ring and one for the auroras found around the planet.
Source:: Hubble spots auroras on Uranus
Ice cores and ancient sediments can be gleaned for clues to weather and climate in the past. But astronomical phenomena — such as solar flares or auroras — at best leave only faint environmental traces lacking in specificity. Now scientists have used historical documents to garner better insight into the patterns of past solar events.
Source:: Charting the skies of history