Search results for brown dwarf

Planetary Sciences Dec 15, 2025

Did a rogue planet reshape our solar system?

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to their current positions. ...

Astronomy Dec 15, 2025

Astronomers find planetary and stellar companions to two ultracool dwarfs in Taurus

Astronomers from the University of Hawai'i (UH) at Manoa and elsewhere have observed the Taurus star-forming region, which resulted in the discovery of planetary-mass and stellar companions of two ultracool dwarf stars. The ...

Astronomy Dec 5, 2025

An adolescent growth spurt in young stars helps giant planets form

Stars form in massive clouds of gas called molecular clouds. As they form, they accrete gas from these clouds, and as the stars rotate, gas and dust accumulates in a rotating disk around the star called a protoplanetary disk. ...

Astronomy Dec 4, 2025

First discoveries from new Subaru Telescope program reveal massive planet and brown dwarf

Astronomers using the Subaru Telescope in Hawaiʻi have discovered a massive planet and a brown dwarf orbiting distant stars. The discoveries are the first results from OASIS (Observing Accelerators with SCExAO Imaging Survey), ...

Astronomy Dec 1, 2025

Do super-Jupiters look like Jupiter? Not necessarily, study shows

Using images from the James Webb Space Telescope (Webb), an international research team including Western's Stanimir Metchev has discovered new answers to explain how some brown dwarfs form giant dust storms, contradicting ...

Planetary Sciences Dec 1, 2025

Did JWST find an exomoon or a starspot?

Searching for exomoons—moons that orbit around another planet—was one of the most exciting capabilities expected of the James Webb Space Telescope (JWST) when it launched in late 2021. So, after four years of operation, why ...

Space Exploration Nov 17, 2025

How do you fire someone into the sun?

We live in changing times. While we once flippantly threw villains to the lions, now we seek to fire them into the sun.

Astronomy Nov 7, 2025

Nearby brown dwarf's 'weather' mapped in unprecedented detail

Researchers at McGill University and collaborating institutions have mapped the atmospheric features of a planetary-mass brown dwarf, a type of space object that is neither a star nor a planet, existing in a category in-between. ...

Astronomy Nov 5, 2025

Should we build an optical interferometer on the moon?

Earth's atmosphere is an impediment to astronomical observations. Not only is cloudy weather a problem, but temperature fluctuations in the atmosphere mean that ground-based telescopes require sophisticated adaptive optics ...

Planetary Sciences Nov 5, 2025

Aging stars may be destroying their closest planets

Aging stars may be destroying the giant planets orbiting closest to them, according to a new study by astronomers at UCL and the University of Warwick.

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