A recent SETI Institute study suggests that space weather could blur and weaken extraterrestrial radio signals long before they reach us.

It is difficult to distinguish between the largest planets and the smallest brown dwarfs, stellar objects that were never massive enough to undergo nuclear fusion. Brown dwarfs tend to be heavier ...

For centuries, astronomers faced the challenge of classifying objects in space based on their appearance. When observing an ...

How can scientists use spin as a fossil record for planetary evolution? This is what a recent study accepted for publication in The Astronomical Journal ho | Space ...

Brown dwarfs get a bad rap in the stellar world, often labeled as "failed stars" for their inability to sustain nuclear fusion at their cores. The mass of these objects falls between planets and stars ...

Spin separates giant planets from 'failed stars' Clearest evidence yet that giant planets spin faster than their cosmic lookalikes. (Nanowerk News) Astronomers have ...

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive ...

"The most likely explanation for the dimming is a brown dwarf – an object heavier than a planet but lighter than a star – surrounded by a vast and dense ring system." When you purchase through links ...

An infrared image shows a brown dwarf discovered by astronomers using the W.M. Keck Observatory and Subaru Telescope on Maunakea on Feb. 23, 2024. Data from both the observatory and telescope ...

An international team, utilizing the Subaru Telescope and its SCExAO system, reported the discovery of a massive planet (HIP 54515 b) and a brown dwarf (HIP 71618 B), representing the initial findings ...

Left: Artistic conception of the longheld astronomical assumption of brown dwarfs resembling Jupiter in appearance, displaying prominent multiple zonal bands and stable vortices similar to the Great ...