Space: NASA Chandra : The Beautiful Universe A Tour of GJ 3253

Space: NASA Chandra : The Beautiful Universe A Tour of GJ 3253

Awesome Space: NASA Chandra : The Beautiful Universe A Tour of GJ 3253



Despite appearing as a steady yellow disk in our sky, the Sun is actually an incredibly active ball of superheated gas. Sometimes the Sun has storms that launch from its surface and send energy and particles into the Solar System. On Earth, these solar storms can generate auroras, damage satellites and power grids, and potentially harm astronauts in orbit.

Therefore, many scientists are working hard to better understand what causes the Sun to act as it does. They do know that the Sun’s magnetic fields are largely responsible for producing its behavior, but there are still many details that remain mysterious.

By studying the X-ray emission of four stars with lower masses than the Sun, a pair of astronomers may have made an important discovery. They found that these lower-mass stars have magnetic fields that are similar in strength to stars like the Sun. This is surprising because the Sun and Sun-like stars have different regions within them where energy flows differently. Astronomers have thought the boundary between these different regions would contribute to the strength of the magnetic fields. If stars without such a boundary – like those in this latest study – have magnetic fields of similar strength, then this theory may need to be re-examined.

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