Brown dwarfs are curious celestial bodies that appear to straddle the mass divide between stars and planets. Often referred to as "failed stars," brown dwarfs form in isolation from a collapsing ...

Stars are born in stellar nurseries, molecular clouds of cold gas and dust. These clouds contain many times the mass of a ...

Brown dwarfs are lighter than stars, and heavier than gas giants like Jupiter. And while astronomers had measured the mass of Gliese 229B to be about 70 times that of Jupiter, an object of that ...

Below this mass, the gravitational force inwards is insufficient to generate the temperature needed for core fusion of ...

Meet the brown dwarf: bigger than a planet, and smaller than a star. A category of its own, it’s one of the strangest objects in the universe. Brown dwarfs typically are defined to have masses ...

"I think of JuMBOs as a cross between stars and brown dwarfs - they would have been like stars had it not been for the radiation from the more massive stars, which has sculpted them to be more like ...

Recent observations, however, reveal that Gliese 229B is actually two brown dwarfs orbiting each other closely, forming a binary system. This was confirmed through studies using telescopes in ...

Due to their close proximity, the white dwarf strips mass from its low-mass companion. This process has removed about 90 per cent of the mass of the companion, turning it from a star into a brown ...

This volume provides a state-of-the-art review of our current knowledge of brown dwarfs and very low-mass stars. The hunt for and study of these elusive objects is currently one of the most dynamic ...

In this feature, learn the difference between pulsars and quasars, antimatter and dark matter, brown dwarfs and white dwarfs, and many other extraterrestrial wonders. Accretion—The collection of ...

Using the Keck Telescope in Hawaii, UC Berkeley researchers observed a planetary system, KMT-2020-BLG-0414, with an Earth-sized planet in a distant orbit around a white dwarf, along with a brown ...