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A solar flare from AR 11944 emitted on January 7, 2014, seen in several different wavelengths of light from NASA’s Solar Dynamics Observatory. From right to left, the artificially-colored images show plasma at approximately 1 million degrees Fahrenheit, 4.5 million degrees Fahrenheit and 12.7 million degrees Fahrenheit. Credits: NASA/SDO. Zipping through space at close to the speed of light, solar energetic particles, or SEPs, are one of the main challenges for the future of human spaceflight. Clouds of these tiny solar projectiles can make it to Earth – a 93 million-mile journey – in ...

Mar 11, 2021 Zipping through space at close to the speed of light, Solar Energetic Particles, or SEPs, are one of the main challenges for the future of human spaceflight. Clouds of these tiny solar projectiles can make it to Earth – a 93-million mile journey – in under an hour. They can fry sensitive spacecraft electronics and pose serious risks to human astronauts. But their onset is extraordinarily hard to predict, in part because we still don’t know exactly where on the Sun they come from. A new study tracing three SEP bursts back to the Sun has provided the first answer.

The source of potentially hazardous solar particles, released from the Sun at high speed during storms in its outer atmosphere, has been located for the first time by researchers at UCL and George Mason University, Virginia, U.S. These particles...

In the new study, published in

Credit: Getty Images Violent solar eruptions can cause havoc in our solar system's weather patterns, and the Sun's magnetic field is the main culprit, emitting invisible waves that ripple out into our planetary neighborhood and beyond Earth. “The Sun is both beautiful and mysterious, with constant activity triggered by its magnetic fields,” said study lead author Ryohko Ishikawa, solar physicist at Tokyo's National Astronomical Observatory of Japan. But it's a tricky thing to observe directly, and these magnetic bands beams into space can only be witnessed by light emanating from super-he...