Launched in 2009, the Kepler Space Telescope's mission is to find "earth-like planets." Since it is impossible to see the planet directly, it is necessary to capture the subtle change in brightness when the planet revolves around the star and determine the existence of the planet.
Kepler, who had been on duty for nine years and eight months, retired on October 30, 2018. The depletion of the fuel required to function properly. NASA hailed Kepler's new discovery of 53,506 stars, 2,662 planets, and 61 supernovae.
Tess, launched to succeed Kepler, is also in operation to find the Second Earth. How are the various planets found by these space telescopes studied? Kepler and Tess focus only on observations, inferring approximate diameters and idle periods.
ESA
The European Space Agency (ESA) launched a new space telescope Key Ops on December 18 to better observe the planet Kepler and Tess found. Kiops will study how the alien planets formed and how they changed.
An ESA official said, "Now we shouldn't be satisfied with the number of extraterrestrial planets. We need to look at the planets more precisely. "You have to look back."
Kiops will begin full-scale operation in April next year, and will analyze and analyze a total of 400 ~ 500 planets for 3.5 years. The telescope mounted was 1.2 meters long and 30 cm in diameter. Using a photometer to measure the intensity of light, the planet's size, mass data, and density are estimated to see what the planet is composed of.
Space NEws
If Kyops identifies a planet similar to Earth, the last James Web telescope, which will be launched in 2021, looks at the planet once more. The Janet Web is for infrared observations, and the goal is to analyze the chemical composition of the atmosphere to find out if there is life.