Showing posts with the label Solar Storm

Scientists conducted an experiment in the lab that explains why the Sun is sooooo hot!

Image: A plasma ejection during a solar flare. Immediately after the eruption, cascades of magnetic loops form over the eruption area as the magnetic fields attempt to reorganize. Source: Solar Dynamics Observatory, NASA One of the major mysteries of solar physics is why the Sun's corona, the outermost part of its atmosphere reaches temperatures of several million degrees Celsius . A "hot" path leading to a region of the solar atmosphere just below the corona, where sound waves and certain plasma waves move at the same speed, explains this effect. A team from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) , a German national lab, developed a laboratory model and for the first time experimentally confirmed the theoretically predicted behaviour of these plasma waves – called Alfvén waves. This was done in an experiment using the molten alkali metal rubidium and pulsed high magnetic fields, as reported in the journal Physical Review Letters. In solar physics, it is now comm

Space weather today! Chances of a solar storm?

Mars Mission, Rosetta , International Space Station and the myriad number of man made satellites orbiting the planet, have already made it obvious that the human race has reached an age where it is looking further beyond its home, the Earth . And now, with companies like Virgin Galactic closer to offering sub orbital space trips to one and all (who can afford it), it has become paramount that we look at the weather outside our Earth before embarking on a journey beyond our clouds. But what is space weather like ?  We do know that outer space is a cold cold space and lacks any air. Astronauts head out for space walks in protective suits and a sufficient supply of oxygen, just the way we all saw in the movie Gravity. But it is not just the temperature and lack of air that we need to worry about, it is solar and magnetic activity in outer space that can impact us.  What is Space weather ?  Space weather studies the impact of solar radiation and other high energy part

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