After US President Biden announced the first full-color deep space image of the universe taken by James Webb Space Telescope on the 11th, NASA announced more full-color cosmic images and spectrograms taken by Webb Space Telescope on the 12th. These images include: the spectrogram of the extragalactic planet "wasp-96b" in the Milky Way galaxy, which is located in the southern constellation Phoenix about 1150 light-years away from the earth. The spectrogram shows for the first time that the planet has the characteristics of water, haze and clouds; The image of the Southern Ring Nebula, about 2000 light-years away from the earth, shows the full picture of this planetary nebula; The image of Stephen quintuple Galaxy in Pegasus reveals the velocity and composition of gas near its supermassive black hole; Carina Nebula, the image shows its earliest and rapid formation stage. The image released by Biden on the 11th is the "SMACs 0723" galaxy cluster captured by Webb Space Telescope, which contains thousands of galaxies and the weakest objects observed by infrared ray so far. The size of the starry sky in the vast universe covered by the image is equivalent to that of a person on the ground who stretches his arm and observes a grain of sand on it. NASA said in a communique released on the 12th that the first images observed by the Webb Space Telescope tell the story of the Unknown Universe by showing various stages of the history of the universe, including exoplanets and the most distant observable galaxies in the early universe. According to the communique, the release of the first images and spectrograms of the Webb Space Telescope marks the beginning of its scientific mission. Astronomers around the world will have the opportunity to use the instruments carried by the Webb Space Telescope to observe celestial bodies in the solar system and in the early universe. Webb Space Telescope is jointly researched and developed by NASA, the European Space Agency and the Canadian Space Agency, and is considered to be the "successor" of Hubble Space Telescope. The telescope was launched from the kuru Space Center in French Guiana on December 25, 2021, and successfully entered the orbit around the second Lagrange point of the solar terrestrial system on January 24 this year. The Hubble Space Telescope mainly observes in the visible and ultraviolet bands, while the Webb Space Telescope mainly observes in the infrared band. The mission objectives of the Webb Space Telescope include observing how the first galaxies in the universe were born more than 13.5 billion years ago, studying the various stages of galaxy evolution, and observing the formation of stars and planetary systems. (Xinhua News Agency)