Space weather model could determine exoplanetary habitable zones

A refinement to a space weather model developed by a center director at the University of Alabama in Huntsville (UAH) could help scientists check out which planets outside our solar system are likely to have someone home.

A solar illusion: Coronal loops may not be what they seem

Many coronal loops—ropey strands of plasma that scientists have long thought existed in the Sun's atmosphere—may actually be optical illusions, according to a new paper that challenges prevailing assumptions of what we ...

A catalog of solar stream interactions

When a fast solar wind stream erupts from a coronal hole (a cooler region in the Sun's atmosphere) and overtakes a slower moving solar wind stream, a stream interaction region (SIR) can form. In the SIR, a density "pileup" ...

The give and take of mega-flares from stars

The long relationships between stars and the planets around them—including the Sun and the Earth—may be even more complex than previously thought. This is one conclusion of a new study involving thousands of stars using ...

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