Recent explosive growth has led to the “erroneous” planet achieving the title of the fastest-growing planet ever observed.
Several months ago, this planet started to rumble within the gaseous envelope surrounding it, and it is now consuming 6 billion tonnes (2.2 trillion pounds) per second. New research reveals it as the most voracious world recorded to date.
Known as Cha 1107-7626, this celestial body is 5-10 times larger than Jupiter and located 620 light-years away. As a “rogue” planet, it does not orbit a star but instead moves freely in its own path.
While the origins of these rogue planets remain a mystery, this finding suggests they may form more like stars than traditional planets.
“People often envision planets as tranquil, stable environments, but this discovery indicates that objects on planets drifting freely in space can lead to an exhilarating landscape,” said Dr. Victor Almendros-Abad, an astronomer at the National Institute of Astrophysics in Italy and the lead researcher on this study.
CHA 1107-7626 is enveloped by a disc of gas and dust, which is spiraling onto its surface and facilitating its growth through a process called accretion.
Last year, astronomers observed the planet’s increasing appetite for gas, leading to a situation where, by August 2025, it had ingested eight times more gas than it had just months prior.
“This represents the most intense accretion event ever documented for planetary mass objects,” stated Almendros-Abad.
The exact characteristics of these drifting worlds have puzzled astronomers for years. There are currently two primary theories: they may have originally formed around stars but were ejected, or they emerged from a collapsing gas and dust cloud like stars.
To gather insights, astronomers captured light from the planet both before and during its recent growth spurt. They detected indications of a robust magnetic field influencing the gas accretion onto the planet. Additionally, they noticed signs of water vapor present during the growth phase but absent before it. Both phenomena are typically associated with growing stars and have not been observed on young planets.
“The concept that planetary objects can function like stars is awe-inspiring, prompting speculation about what an early stage of such worlds might entail,” remarked Dr. Amelia Bayo, an astronomer at the Southern Observatory in Europe, who contributed to this study.
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Source: www.sciencefocus.com
