JWST Photographs Possible Giant Planets Around White Dwarfs
Sky & Telescope | Exoplanets
by AAS Nova
3w ago
JWST has directly imaged two giant exoplanets orbiting white dwarf stars. This discovery may reveal the fate of our solar system. The post JWST Photographs Possible Giant Planets Around White Dwarfs appeared first on Sky & Telescope ..read more
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Did Webb Detect an Atmosphere on Hot Super-Earth 55 Cancri e?
Sky & Telescope | Exoplanets
by Monica Young
2M ago
New Webb data suggests that the hot super-Earth 55 Cancri e has a thick atmosphere, perhaps maintained by the planet's magma ocean. The post Did Webb Detect an Atmosphere on Hot Super-Earth 55 Cancri e? appeared first on Sky & Telescope ..read more
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Unexplained Auroras Found on a Lonely Brown Dwarf
Sky & Telescope | Exoplanets
by Monica Young
2M ago
James Webb Space Telescope observations of a faint, giant world have revealed the signature of aurorae — even though the world has no star. The post Unexplained Auroras Found on a Lonely Brown Dwarf appeared first on Sky & Telescope ..read more
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Doubt Cast on Exomoon Candidates
Sky & Telescope | Exoplanets
by Kit Gilchrist
3M ago
Exomoon candidates are tantalizing but, according to new research, perhaps unfounded. The post Doubt Cast on Exomoon Candidates appeared first on Sky & Telescope ..read more
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Six Sub-Neptunes Discovered 100 Light-Years Away
Sky & Telescope | Exoplanets
by Colin Stuart
4M ago
Astronomers have uncovered six sub-Neptune exoplanets dancing in lock-step around the same distant star, shedding light on their formation. The post Six Sub-Neptunes Discovered 100 Light-Years Away appeared first on Sky & Telescope ..read more
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Webb Telescope Peers into Puffy Planet with Clouds of Sand
Sky & Telescope | Exoplanets
by Govert Schilling
4M ago
A mere 200 light-years away, there's a planet with the density of styrofoam and clouds of sand. How did it get so weird? The post Webb Telescope Peers into Puffy Planet with Clouds of Sand appeared first on Sky & Telescope ..read more
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Webb Shows Planets Really Do Start with Pebbles
Sky & Telescope | Exoplanets
by Colin Stuart
4M ago
New observations have turned up evidence that icy pebbles deliver the water to inner regions of planet-forming disks. The post Webb Shows Planets Really Do Start with Pebbles appeared first on Sky & Telescope ..read more
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How Did Two Hot and Super-dense Neptunes Form?
Sky & Telescope | Exoplanets
by Arwen Rimmer
6M ago
Astronomers have discovered two Neptune-size planets that are denser than rock and in searingly close orbits to their star. How did these odd worlds form? The post How Did Two Hot and Super-dense Neptunes Form? appeared first on Sky & Telescope ..read more
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Hubble, Webb Data Hint at Ocean Worlds
Sky & Telescope | Exoplanets
by Elise Cutts
6M ago
Data coming from the Webb and Hubble space telescopes suggests two exoplanets might be water worlds. But the evidence isn’t yet definitive. The post Hubble, Webb Data Hint at Ocean Worlds appeared first on Sky & Telescope ..read more
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Webb Views the Ring Nebula and Earendel in a New Light
Sky & Telescope | Exoplanets
by Monica Young
8M ago
This week, James Webb Space Telescope reveals new details in the Ring Nebula and shows that the most distant known star isn't alone. Meanwhile, patient astronomers have collected 17 years' worth of images of the super-Jupiter Beta Pictoris b. The post Webb Views the Ring Nebula and Earendel in a New Light appeared first on Sky & Telescope ..read more
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