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Kepler-10b is the first confirmed terrestrial planet to have been discovered outside the Solar System by the Kepler Space Telescope. [7] Discovered after several months of data collection during the course of the NASA-directed Kepler Mission, which aims to discover Earth-like planets crossing in front of their host stars, the planet's discovery was announced on January 10, 2011.
Per the usual exoplanet nomenclature, the first planet discovered to be orbiting Kepler-10 is called Kepler-10b. Announced in 2011, it was the first definitely rocky planet identified outside the Solar system. The planet has a mass that is 3.33±0.49 times that of Earth's and a radius that is 1.47 +0.03 −0.02 times that of Earth. [2]
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...
There are eight planets within the Solar System; planets outside of the solar system are also known as exoplanets. Artist's concept of the potentially habitable exoplanet Kepler-186f As of 24 January 2025, there are 5,830 confirmed exoplanets in 4,354 planetary systems , with 976 systems having more than one planet . [ 1 ]
The inner planet, Kepler-10b, is a rocky planet [1] that orbits every ~0.8 days at a distance of 0.01684 AU. [4] Kepler-10c's equilibrium temperature is estimated at 584 K, almost four times hotter than Jupiter's. The planet's orbital inclination is 89.65º, or almost edge-on with respect to Earth and to Kepler-10. Transits have been observed ...
A European Space Agency satellite has observed the shiniest exoplanet ever discovered. The scorching world has reflective clouds made of silicates and titanium.
By RYAN GORMAN Scientists may have found Planet X -- the long-rumored object believed to be larger than Earth and further from the sun than Pluto. Planet X and another object dubbed "Planet Y ...
Harrington died in January 1993, without having found Planet X. [53] Six months before, E. Myles Standish had used data from Voyager 2's 1989 flyby of Neptune, which had revised the planet's total mass downward by 0.5%—an amount comparable to the mass of Mars [53] —to recalculate its gravitational effect on Uranus. [54]