If you have a question you’d like an expert to answer, send it to curiouskids@theconversation.com. Its diameter is 60 percent larger than Earth’s, which means it likely has a rocky surface. It's the closest so far. We don’t know whether life exists on Kepler-452b, but we do know that it has some things in common with the Earth. ... Artist’s concept of Earth cousin Kepler 452b. The Kepler-186 star is dimmer than the sun, so the planet may be somewhat similar to Earth in size, but its star is not the same as the sun. An artist's impression of Kepler 452b, the most Earth-like planet ever discovered, This image compares the size of Earth with the size of Kepler 452b, Kepler 452b was named after the telescope that spotted it, the Kepler space telescope, This artist's impression shows what the surface of Kepler 452b could look like, with active volcanoes and liquid water, The sweep of NASA Kepler mission’s search for small, habitable planets in the last six years, A graphic of the crafts that have carried out Exoplanet missions, This size and scale of the Kepler-452 system compared alongside the Kepler-186 system and the solar system. The existing Open Comments threads will continue to exist for those who do not subscribe to Independent Premium. Kepler-452b receives 10% more energy from its parent star than Earth receives from the Sun. Kepler-452b probably has a thick atmosphere, liquid water and active volcanoes, but these are best guesses based on modeling work. Kepler-452 is a G-type main-sequence star located about 1,402 light-years away from Earth in the Cygnus constellation. If there are elements necessary for biological life on the Kepler-452b surface, including liquid water and a favorable atmosphere, life can flourish in this world. Sign up for Scientific American ’s free newsletters. You can also choose to be emailed when someone replies to your comment. The most insightful comments on all subjects will be published daily in dedicated articles. Kepler 442b is known as a super-Earth, so let's we are Kepler 442b Learn more about here. Kepler-452b, the first approximately Earth-sized planet to be found in a Sun-like star’s habitable zone—the orbital region where an Earth-like planet could possess liquid water on its surface and thus possibly support life. The illustration represents one possible appearance for Kepler-452b -- scientists do not know whether the planet has oceans and continents like Earth. Not a lot. The added light and heat energy that the planet receives from the star not only means it is slightly warmer than Earth, but could also mean that plant life could thrive there. The habitable zone is a region around a star where temperatures are right for water—an essential ingredient for life as we know it—to pool on the surface. If it's too far away, it will be too cold. A year on Venus, sometimes the closest planet to the Earth, lasts only 88 Earth-days. Create a commenting name to join the debate, There are no Independent Premium comments yet - be the first to add your thoughts, There are no comments yet - be the first to add your thoughts. Here we get a lot of information about Kepler 442b. The habitable zone is the region around a star where temperatures are just right for water to … It's slightly warmer than Earth, slightly larger, could have liquid water on the surface and it's 1,400 light years away, Find your bookmarks in your Independent Premium section, under my profile. Its star, Kepler 452, is also older and bigger, as well as brighter than our sun. It orbits a sun-like star once every 384.84 days. 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. Alongside this, the star is approximately six billion years old and possesses a high metallicity. Scientists have described Kepler-186f as a cousin to Earth. Kepler-452b is about 60 percent larger than Earth and orbits its parent star, Kepler-452, once every 385 days — just 20 days longer than Earth orbits the Sun. Everything about Kepler 452b - from its size, the length of its years, the estimated conditions on the surface - is very similar to Earth. For one thing, NASA reported, it’s 60 percent larger in diameter than Earth and its orbit is 385 days. Kepler 452, the planet's star, is around 1.5 billion years older than our Sun. 22b is inside its star’s habitable zone. Anya Biferno. It's Earth 2.0.". Kepler 442b is confirmed in close proximity to the earth-shaped exoplanet. The confirmation of Kepler-452b brings the total number of … The habitable zone is a region around a star where temperatures are right for water—an essential ingredient for life as we know it—to pool on the surface. Comparison between Earth and Kepler-452b and their host stars Scientists using data from NASA's Kepler mission have confirmed the first near-Earth-size planet orbiting in the habitable zone of a sun-like star. Kepler-452b is larger than Earth, but its 385-day orbit is only 5 per cent longer. Kepler-452b has a diameter 60 percent larger than Earth and is considered a super-Earth-size planet. You can find our Community Guidelines in full here. There are 4,696 planet candidates now known with the release of the seventh Kepler planet candidate catalog - an increase of 521 since the release of the previous catalog in Jan. 2015, Highlighted are new planet candidates from the seventh Kepler planet candidate catalog that are less than twice the size of Earth and orbit in the stars' habitable zone—the range of distances from a star where liquid water could exist on the surface of an orbiting planet. Kepler-452b is 5 percent farther from its parent star than Earth is from our sun. Site Editor: It could have water in liquid state It is located in the ‘Goldilocks Zone’ of its solar system. This list shows all planetary and stellar components in the system. When looking for planets that might support life, scientists start with the habitable zone. Scientists don’t know if Kepler-452b can support life. Both Kepler-438b and Kepler-442b orbit red dwarf stars that are smaller and cooler than our sun.Kepler-438b circles its star every 35 days and receives about 40 percent more light than Earth; it's estimated to have a 70 percent chance of being in the habitable zone of its star.Kepler-442b completes one orbit every 112 days and gets about two-thirds as much light as Earth. Much more research on the planet is still being done, which will be able to confirm whether anything could thrive on Kepler 452b. 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. It allows our most engaged readers to debate the big issues, share their own experiences, discuss real-world solutions, and more. Independent Premium Comments can be posted by members of our membership scheme, Independent Premium. Kepler 452b is warm, possibly wet, and might be able to host plant life - however, it's 1,400 lightyears away. They have been using the Allen Telescope Array – a group of 42 antennas north of San Francisco – to monitor various frequencies for radio signals and search for sophisticated life on Kepler 452b. Read our full mailing list consent terms here. The planet is also 5% further away from its star, than the Earth's 92million miles to our sun, at 96,6 … Are you sure you want to delete this comment? While Kepler-452b is larger than Earth, its 385-day orbit is only 5 percent longer. Light from the Sun takes around eight minutes to reach Earth, so naturally, a trip to Kepler 452b would take an incredibly long time. But this estimate depends on what sort of atmosphere the planet has. Kepler 452b is located around 1,400 light years from Earth in the constellation of Cygnus. Want to bookmark your favourite articles and stories to read or reference later? However, there is uncertainty about the size, and, given the fact that we know nothing about the composition (and hence density) of Kepler-452b, these figures are at best crude estimates. Kepler-452b is much more lonely than us with only one other planet in its system. Kepler-452b receives 10% more energy from its parent star than Earth receives from the Sun. Kepler 452b is about 60 per cent larger than Earth (Artist’s impression: NASA/JPL-Caltech/T. ", "People already adapt to heavy weights - humans are built to do this kind of thing.