The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

A well-studied cosmic object has stunned astronomers. The "failed star" Gliese 229B has been revealed to be two so-called ...

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 ...

I say planet-like because brown dwarfs are not actually considered stars or planets. In fact, they straddle the line that divides planets and stars. They form similarly to other stars. However ...

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 ...

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 ...

Using the Transiting Exoplanet Survey Satellite (TESS) and the Next Generation Transit Survey (NGTS), an international team ...

Predictions about when we might discover an alien signal from an intelligent civilization remain accurate, according to ...