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The Most Common Stars in Our Galaxy May Be More Habitable Than We Thought EVAN GOUGH, UNIVERSE TODAY 17 JANUARY 2021 Red dwarf stars are the most common kind of star in our neighbourhood, and probably in the Milky Way. Because of that, many of the Earth-like and potentially life-supporting exoplanets we've detected are in orbit around red dwarfs. The problem is that red dwarfs can exhibit intense flaring behaviour, much more energetic than our relatively placid Sun.   So what does that mean for the potential of those exoplanets to actually support life? Most life on Earth, and likely on o...

January 6, 2021 A new study from Northwestern University shows that solar flares – space weather – might not always be as dangerous for life on exoplanets as typically thought. In fact, it might even help astronomers discover alien life on distant worlds. Artist’s concept of a distant red dwarf star and accompanying exoplanet. Red dwarfs are common in our galaxy. They produce volatile, deadly flares – and accompanying space weather – that can erode the atmospheres of any nearby planets and severely endanger any existing life. But … maybe not always, according to a new study. Image...

Credit: NASA's Goddard Space Flight Center/S. Wiessinger Although violent and unpredictable, stellar flares emitted by a planet's host star do not necessarily prevent life from forming, according to a new Northwestern University study. Emitted by stars, stellar flares are sudden flashes of magnetic imagery. On Earth, the sun's flares sometimes damage satellites and disrupt radio communications. Elsewhere in the universe, robust stellar flares also have the ability to deplete and destroy atmospheric gases, such as ozone. Without the ozone, harmful levels of ultraviolet (UV) radiation can penet...

Date Time Upside of volatile space weather Although violent and unpredictable, stellar flares emitted by a planet’s host star do not necessarily prevent life from forming, according to a new Northwestern University study. Emitted by stars, stellar flares are sudden flashes of magnetic energy. On Earth, the sun’s flares sometimes damage satellites and disrupt radio communications. Elsewhere in the universe, however, robust stellar flares also have the ability to deplete and destroy atmospheric gases, such as ozone. The destruction of gases like ozone could allow harmful levels of ultraviol...