James Webb Space Telescope_ A New Era in Exoplanet Study

Описание: (00:00) the search for extraterrestrial life has been one of Humanity's biggest questions for centuries and with advances in technology astronomy has taken huge steps towards answering this question one of the most significant recent discoveries is the Trappist one star system located 40 light years from Earth in the Aquarius constellation this star system is unique for several reasons one of which is the possibility that its planets have liquid water on their surfaces which is essential for Life as We Know It in 2017 an international group of
(00:37) astronomers announced the discovery of seven earth-sized planets with temperatures similar to Earth in the trappist-1 system three of which are in the so-called habitable zone the habitable zone is the region around a star where it is believed that planets could have the conditions to support liquid water on their surface in other words it is the region where the temperature is suitable for liquid water to exist on a planet's surface the discovery of these planets is important because the presence of liquid
(01:08) water on a planet's surface is one of the primary requirements for Life as We Know It Additionally the planets in the trappist-1 system are similar in size and temperature to Earth which increases the probability that they could support life but it's not just temperature that makes a planet habitable other factors such as orbital eccentricity atmospheric properties planetary rotation and additional sources of heat Beyond Stellar radiation can also influence a planet's habitability astronomers are investigating these
(01:43) factors to determine if the planet's entrappist-1 could be habitable the planets in the Trappist one system orbit around an Ultra Cool dwarf star which is much smaller and cooler than our sun because of their small size these planets are very close to their star and complete a full orbit in just a few Earth days this means that the planets receive much more radiation from their star than Earth receives from the Sun but because their star is much cooler than our sun the radiation that the planets receive is largely in the form
(02:17) of infrared light which is not harmful to Life as We Know It Additionally the presence of seven planets in the trappist-1 system suggests that this type of planetary system is common in our galaxy in fact NASA has discovered hundreds of exoplanets in recent years many of which have similar characteristics to the planets in the trappist-1 system as more exoplanets are discovered the search for life beyond our solar system continues astronomers have identified a large number of planets that could have conditioned similar to Earth and be
(02:53) habitable and detection technology is constantly improving recently the James Webb Space Telescope the successor to the Hubble telescope has been launched into space and is expected to provide more detailed information about the atmosphere of Earth-like planets and the presence of gases that could be indicative of life the search for extraterrestrial life is also expanding beyond the detection of habitable exoplanets scientists are investigating other possibilities such as the possibility of Life existing in extreme environments
(03:28) such as on the surface of a comet or within underground oceans in summary the possibility of finding life beyond our solar system is exciting and still in its early stages as more exoplanets are discovered and detection techniques are improved it is possible that in the future we may find answers to some of Humanity's most fundamental questions about our place in the universe and the existence of other forms of life the search for earth-like planets and exploration of the universe are constantly evolving activities with new
(04:02) discoveries and advances being made all the time for example there are currently several projects underway for the search of earth-like planets and exploration of the universe one of these projects is NASA's James Webb Space Telescope which is scheduled to launch in 2021 this telescope will be able to study the atmosphere of exoplanets and search for signs of life Additionally the European space agency has the Plato planetary transits and oscillations of stars Mission underway which aims to search for Earth-like
(04:38) planets and study their composition and atmosphere in summary the search for earth-like planets and exploration of the universe are activities that will continue into the future with new discoveries and advances constantly being made in the fields of astronomy and astrobiology thank you