Rogue Planet Undergoes Record-Breaking Growth Spurt In Distant Space

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Published by Science News:

In the vast expanse of space, a lone planet has been observed undergoing a remarkable transformation. Located approximately 600 light-years away in the southern hemisphere constellation Chamaeleon, this rogue planet, designated Cha 1170-7626, has been experiencing a rapid growth spurt. According to researchers, the planet has been gobbling up gas and dust at an astonishing rate of 6 billion metric tons per second.

This phenomenon, reported in the October 10 Astrophysical Journal Letters, marks the fastest growth observed in any planet, whether it orbits a star or not. The discovery provides valuable insights into the formation of free-floating planets, which may have originated around host stars before being ejected or formed in isolation from collapsing gas clouds.

The journey of Cha 1170-7626 began nearly 20 years ago when astronomers first spotted the young rogue planet. Estimated to be five to 10 times as massive as Jupiter, it was already packing on mass by sucking up material from a surrounding disk of gas and dust. Victor Almendros-Abad of the Palermo Astronomical Observatory in Italy and his colleagues sought to investigate the evolution of rogue planets.

Using the Very Large Telescope in Chile, the researchers observed ultraviolet, visible, and infrared light emitted by Cha 1170 ← →

A rogue planet some 600 light-years away has been going through a growth spurt, gobbling up gas and dust at a rate of 6 billion metric tons per ...
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