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| Name | Kepler 452B [ NASA Most Influental Discovery ] |
| Video Uploader | Video From Best Offrz |
| Upload Date | This Video Uploaded At 24-07-2015 12:09:59 |
| Video Discription | Nasa scientists have announced the discovery of Kepler 452b, also known as 'Earth 2.0', an earth-like planet in our galaxy. Over the course of years of data-gathering by the Kepler space telescope and even more analysis and work here on Earth, scientists confirmed the existence of the distant exoplanet, which is the most earth-like planet ever discovered. Although the planet is far too far away to photograph, advanced Nasa technology means we know a surprising amount about this 'New Earth'. It's the most similar planet to Earth that has ever been discovered Beginning the conference, John Grunsfeld, associate administrator for Nasa's Science Mission Directorate in Washington, said: "Today we're announcing the discovery of an exoplanet that as far as we can tell is a pretty close cousin of Earth. It's the closest so far. It's Earth 2.0." Everything about Kepler 452b - from its size, the length of its years, the estimated conditions on the surface - is very similar to Earth. Years on Kepler 452b are about the same duration as they are on Earth A year on the newly-discovered planet - the time it takes to orbit its star, Kepler 452 - lasts for 385 days, only 20 days longer than a year here on Earth. That's much different to years on other, closer planets to Earth. A year on Venus, sometimes the closest planet to the Earth, lasts only 88 Earth-days. A year on Neptune, further out in our solar system, is the equivalent of 185 Earth-years. It's spent billions of years within the optimal habitable distance of its star Kepler 452, the planet's star, is around 1.5 billion years older than our Sun. If a planet is too close to its star, it will be too hot to host life. If it's too far away, it will be too cold. Kepler 452b has been the perfect distance from its star for many billions of years. According to Jon Jenkins, the Kepler data analysis lead at NASA's Ames Research Centre, this means it's possible that it hosts life on its surface, or at least could have at some point in its history. It could have active volcanoes and water on its surface Kepler 452b is possibly the right temperature to allow liquid water to exist on the surface - as far as we know, this is essential for supporting life. According to John Coughlin, a researcher at the SETI Institute in California, the Kepler team worked with geologists to find out the make-up of the planet. Due to its size and age, it's likely that it is a rocky planet, meaning it could have a volcanic system under its surface. Humans could potentially survive in Kepler 452b's stronger gravity The new planet is slightly larger than Earth, and is estimated to have twice the gravitational pull of our own planet. However, according to the scientists on the Kepler team, this doesn't mean it couldn't support life. SgkgeImi7jc |
| Category | People & Blogs |
| Tags | Kepler Spacecraft (Satellite) | NASA (Spacecraft Manufacturer) | Astronomy (Field Of Study) | Kepler 452B |
