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This artist’s concept visualizes a super-Neptune world orbiting a low-mass star near the center of our Milky Way galaxy. Scientists recently discovered such a system that may break the current record for fastest exoplanet system, traveling at least 1.2 million miles per hour, or 540 kilometers per second. NASA/JPL-Caltech/R. Hurt (Caltech-IPAC)

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This artist’s concept visualizes a super-Neptune world orbiting a low-mass star near the center of our Milky Way galaxy. Scientists recently discovered such a system that may break the current record for fastest exoplanet system, traveling at least 1.2 million miles per hour, or 540 kilometers per second. NASA/JPL-Caltech/R. Hurt (Caltech-IPAC)
https://m.universetoday.com/system/media_attachments/files/113/993/323/001/837/162/original/5c702c65a6f8ecbe.jpg

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Fraser Cain (fraser@m.universetoday.com)'s status on Thursday, 13-Feb-2025 09:05:58 JST Fraser Cain

Astronomers have discovered a hypervelocity star blasting through the Milky Way at 540 km/s. These have been seen before, but what makes this special is a super-Neptune exoplanet in orbit around the star. It's possible that the star was part of a binary system that came too close to the black hole at the center of the Milky Way, which stripped away one of the pair, hurling the other away at high velocity. Amazingly, it hung onto its planet through the process.
https://www.nasa.gov/universe/nasa-scientists-spot-candidate-for-speediest-exoplanet-system/

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