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Ross 128 b would be 0.5 R 馃湪 (Earth radii) for a pure-iron composition and 3.0 R 馃湪 for a pure hydrogen-helium composition, both implausible extremes. For a more plausible Earth-like composition, the planet would need to be about 1.10 R 馃湪 - i.e., 1.1 times the radius of Earth (approximately 7008 km ).
The Milky Way Project logo. The Milky Way Project is a Zooniverse project whose main goal is to identify stellar-wind bubbles in the Milky Way Galaxy.Users classify sets of infrared images from the Spitzer Space Telescope and the Wide-field Infrared Survey Explorer (). [1]
Planet Nine is a hypothetical ninth planet in the outer region of the Solar System. [4] [2] Its gravitational effects could explain the peculiar clustering of orbits for a group of extreme trans-Neptunian objects (ETNOs), bodies beyond Neptune that orbit the Sun at distances averaging more than 250 times that of the Earth i.e. over 250 astronomical units (AU).
PAHs seem to have been formed shortly after the Big Bang, are widespread throughout the universe, and are associated with new stars and exoplanets. [ 34 ] In April 2019, scientists, working with the Hubble Space Telescope , reported the confirmed detection of the large and complex ionized molecules of buckminsterfullerene (C 60 ) (also known as ...
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