Planets that Exist Outside Earth’s Solar System - Discovery of Alien Planets in our Solar System
McGill Physics student Evelyn Macdonald and her supervisor Prof. Nicolas Cowan used over a decade of observations of Earth's atmosphere taken by the SCISAT satellite to construct a transit spectrum of Earth, a sort of fingerprint for Earth's atmosphere in infrared light, which shows the presence of key molecules in the search for habitable worlds. This includes the simultaneous presence of ozone and methane, which scientists expect to see only when there is an organic source of these compounds on the planet. Such a detection is called a "biosignature."
"A handful of researchers have tried to simulate Earth's transit spectrum, but this is the first empirical infrared transit spectrum of Earth," says Prof. Cowan. "This is what alien astronomers would see if they observed a transit of Earth."
Видео Planets that Exist Outside Earth’s Solar System - Discovery of Alien Planets in our Solar System канала Space & The Universe HD
"A handful of researchers have tried to simulate Earth's transit spectrum, but this is the first empirical infrared transit spectrum of Earth," says Prof. Cowan. "This is what alien astronomers would see if they observed a transit of Earth."
Видео Planets that Exist Outside Earth’s Solar System - Discovery of Alien Planets in our Solar System канала Space & The Universe HD
Показать
Комментарии отсутствуют
Информация о видео
25 октября 2020 г. 9:33:42
00:00:00
Другие видео канала
What’s At The Center Of A Black Hole? Space DiscoveryPotential Life on other Planetary Documentary - Searching for the Origin of Life across the UniverseWhat would happen if the Earth was bigger than the Sun - Planetary ScienceSecrets of the Universe | The Solar SystemThe Search for Life in the Universe Documentary - Voyage To The Planets And Beyond The Solar SystemThe Discovery of the Universe Documentary - Planets of our Solar SystemExplore the Universe and Planets Documentary - In Search of Alien Planets in the UniverseExplorer of the Universe Documentary - Searching for Life Beyond EarthLife on Earth and in the Universe Documentary - Exoplanet Exploration Planets Beyond Solar SystemWhat Would Earth Be Like Without the Sun - How Long Could Life On Earth Survive With No Sun?What Would Happen If You Fell into a Black Hole & What's It Like Inside?Amazing Facts About the Universe | Our Violent UniverseInteresting Facts of the Amazing UniverseThe Inner Secrets of Planets and Star Documentary - Formation of the Solar SystemSearch for Life in the Universe Documentary - New Discoveries Never Before SeenWhat Astronauts Really Eat in Space - Space Food SurprisesLawrence Krauss Explains How You Get A Universe From NothingJourney to the Edge of the UniverseHow Much Does A Spacesuit Cost? Why Do Astronauts Need Space Suits?SATURDAY NIGHT 🌙 MOON, STARS & THE UNIVERSE