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18 hours ago · November 2, 2024. A Webb Space Telescope image of the nearly 100-billion-mile-diameter (160 billion km) disk of dust and debris surrounding the star Vega. The black spot covers the bright star ...
5 days ago · Nevertheless, its variation in intensity over about two months allowed the team to estimate that the system included a star about half the mass of the sun, a planet about the mass of Earth and a very large planet about 17 times the mass of Jupiter — likely a brown dwarf. Brown dwarfs are failed stars, with a mass just shy of that required to ignite fusion in the core.
2 days ago · How many stars can a planet successfully orbit before gravitational interactions compel it to be ejected?
- Ethan Siegel
4 days ago · The James Webb Space Telescope may have found dozens of elusive brown dwarfs — strange objects larger than planets but smaller than stars — beyond the Milky Way for the first time ever.
18 hours ago · This list of exoplanets discovered in 2024 is a list of confirmed exoplanets that were first reported in 2024. For exoplanets detected only by radial velocity, the listed value for mass is a lower limit. See Minimum mass for more information. Name.
5 days ago · The researchers using this data found clear evidence that planet-forming disks around stars indeed disappear much faster when they are close to massive stars producing a lot of high-energy radiation. The disks also disappear more quickly in regions where the stars are more closely packed together.
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2 days ago · On the evenings of November 16 and 17, 2024, the waning gibbous moon will slide between the planet Jupiter and Capella, the brightest star in Auriga the Charioteer. Near Jupiter lies the giant ...
