High-resolution observations shed more light on a peculiar brown dwarf system
Using the Keck Planet Imager and Characterizer (KPIC), astronomers have performed high-resolution spectroscopic observations ...
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Giant planet or 'failed star?' Newfound mystery world blurs the lines
By tracing the corkscrew wobble of two stars as they move through the sky, the Gaia space mission has discovered one new giant "planet," plus a new brown dwarf.
Spacecraft finds a positively enormous planet 12 times Jupiter's mass
Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...
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Wobbling stars reveal hidden companions in Gaia data
Gaia-4b and 5b: Radial Velocity Confirmation of Gaia Astrometric Orbital Solutions Reveal a Massive Planet and a Brown Dwarf Orbiting Low-mass Stars. The Astronomical Journal , 2025; 169 (2): 107 ...
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Scientists discover an object 21 times larger than Jupiter in space, but it's neither a star nor a planet
One is so big it could fit 21 Jupiters inside but is neither a star nor a planet. Gaia-5b is a brown dwarf, larger than a planet but too light to be a star. It orbits a low-mass star named Gaia-5 ...
ESA spacecraft uses 'wobbly' stars to discover huge hidden worlds
The Gaia telescope aimed to create an accurate and detailed 3D map of billions of stars in our galaxy. Its findings have flipped astronomers' understanding of the Milky Way on its head and have led to ...
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Gaia Discovers a Massive Exoplanet and a Brown Dwarf
This gas giant orbits a relatively small star, challenging existing theories on planetary formation. Additionally, Gaia identified a brown dwarf, Gaia-5b, an object that exists in the ambiguous zone ...
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Bizarre Things: Space & Time
4, 2025 — Using data from the European Space Agency's Gaia mission, scientists have found a huge exoplanet and a brown dwarf. This is the first time a planet ... with nine star-filled rings ...