Exoplanets with magnetic fields
Astronomers have found strong evidence for the existence of magnetic fields in exoplanets, based on measurements of gaseous winds on seven giant, hot planets known as "hot Jupiters." The results indicate that some of these planets share a crucial property of magnetic fields, which play a role in protecting their atmospheres and their evolution over time—despite being uninhabitable at present and orbiting their stars at close distances. Wind speeds on these planets can reach up to 25,000 kilometers per hour. The findings are significant for understanding the importance of magnetic fields in sustaining planetary atmospheres and the planets' overall stability.
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