Phys.org29 天
High-resolution observations shed more light on a peculiar brown dwarf system
Brown dwarfs (BDs ... therefore near the solar value. In general, the C/O ratio is perceived as a potential diagnostic of a system formation and in the case of HD 206893 B it suggests a core ...
Scientific American4 年
Astronomer Mike Brown on the Solar System's Outer Reaches
Best known for driving demotion of Pluto to dwarf planet, astronomer Mike Brown discusses the next horizons in our solar system, including the hunt for the elusive Planet 9. This article was ...
Space on MSN23 小时
Rogue exoplanet or failed star? James Webb Space Telescope looks into a new cosmic case
"Planetary-mass objects don't fit neatly into existing categories of stars or planets." Using the James Webb Space Telescope ...
Business Today4 个月
First-ever brown dwarf planet discovery reveals surprise binary system after 3 decades
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 ...
Mashable27 天
Spacecraft finds a positively enormous planet 12 times Jupiter's mass
Credit: ESA / Gaia / DPAC / M. Marcussen illustration Scientists have dubbed the exoplanet, a world well outside our solar system, Gaia-4b. The brown dwarf, not quite a planet or a star ...
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 is estimated to be 64 percent the mass of the sun. That makes Gaia-4b one of ...