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. Read our full mailing list consent terms here. Kepler-452b probably has a thick atmosphere, liquid water and active volcanoes, but these are best guesses based on modeling work. View larger. The planet's star, Kepler 452, is slightly bigger than our own Sun. Kepler-452b is made of rocks and metals whereas the planet seems to have chances of habitual life in the future. It's Earth 2.0.". 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 a spacecraft carrying humans travelled at this speed towards Kepler 452b, it would take the unlucky astronauts around 25.8 million years to get there. Please continue to respect all commenters and create constructive debates. Nasa scientists have announced the discovery of Kepler 452b, also known as 'Earth 2.0', an earth-like planet in our galaxy. According to Jon Jenkins, the Kepler data analysis lead at … Kepler-452b is the first planet orbiting a star about the same size and temperature as the sun. Kepler-442b may have oceans. Kepler-452b probably has a thick atmosphere, liquid water and active volcanoes, but these are best guesses based on modeling work. It's the closest so far. Kepler 452b is located around 1,400 light years from Earth in the constellation of Cygnus. 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. If it's too far away, it will be too cold. A year on Neptune, further out in our solar system, is the equivalent of 185 Earth-years. Kepler 22b orbits inside the habitable zone of its host star, with an Earth like atmosphere the planet could enjoy comfortable temperatures of around 22C (72F), allowing for the presence of liquid water on its surface. Kepler 452b has been the perfect distance from its star for many billions of years. The habitable zone is the region around a star where temperatures are just right for water … Nasa's New Horizon probe - the one that recently took the amazing pictures of Pluto - left Earth's orbit faster than any other spacecraft before it, at around 36,373 mph. Consequently, Kepler-452b is named as Super-Earth. 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. | Face to face! If it is a terrestrial planet, it is most likely a super-Earth with many active volcanoes due to its higher mass and density. It is the smallest planet yet discovered that orbits in the habitable zone around a sun-like star. The newly discovered Kepler-452b is the smallest planet to date discovered orbiting in the habitable zone -- the area around a star where liquid water could pool on the surface of an orbiting planet -- of a G2-type star, like our sun. Kepler-452b has a probable mass five times that of Earth, and its surface gravity is nearly twice as Earth's, though calculations of mass for exoplanets are only rough estimates. A planetary tour through time. You could even get a healthy tan like here on holiday.". The most insightful comments on all subjects will be published daily in dedicated articles. The habitable zone is an area away from the local star that would allow for liquid water to form. 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. It would also be a bit more spacious, with a 60% increase in … An artist's impression of Kepler 452b, the most Earth-like planet ever discovered Twelve Exoplanet discoveries from Kepler that are less than twice the size of Earth and reside in the habitable zone of their host star. 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. You can also choose to be emailed when someone replies to your comment. A unique feature of the seventh Kepler candidate catalog is that it is the first to fully automate the assessment of transit-like signals. Kepler 452b "is the closest thing we have to another place somebody might call home," Jon Jenkins, Kepler data analysis lead, said in a news conference call on Thursday. Until its discovery in 2015, the Kepler telescope had only detected 12 Earth-size planets (smaller than twice the size of Earth) in the habitable zone of their smaller and cooler stars. As others have already pointed it out, yes the data is showing a 1400 year old Kepler452b. 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 ancients debated the existence of planets beyond our own; now we know of thousands. For instance, Kepler-452b takes 385 Earth days to complete its orbit around its star, which is only a bit longer than one Earth year. 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. Scientists believe that Kepler-452b is about 6 billion years old, much older than Earth. In fact all the observations in astronomy are like looking back in time. 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. The confirmation of Kepler-452b … Which means it will take us 1,400 years to reach Kepler 452’s planet system, provided that we travel at the speed of light. This planet is about 60% larger than the Earth. Kepler 452B: Nasa announces discovery of new planet seen as 'close cousin' to Earth. If a planet is too close to its star, it will be too hot to host life. The clouds on the planet would be thick and misty, covering much of the surface as viewed from space. Curious Kids is a series by The Conversation, which gives children the chance to have their questions about the world answered by experts. 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. The newly discovered Kepler-452b is the smallest planet to date discovered orbiting in the habitable zone — the area around a star where liquid water could pool on the surface of an orbiting planet — of a G2-type star, like our sun. Kepler-452b is the first near-Earth-size world to be found in the habitable zone of star that is similar to our sun. Kepler-22b is the first extra-solar planet, or exoplanet, that the Kepler Space Telescope found in the habitable zone of its star. March 7, 2009: Launch May 13, 2009: Kepler begins its operational mission December 2011: NASA announces Kepler has found the first planet, Kepler-22b, in the habitable zone of a star outside our solar system Oct. 30, 2018:NASA announces Kepler is out of fuel and will be retired in its current orbit It could have water in liquid state It is located in the ‘Goldilocks Zone’ of its solar system. What is known about the planet is that it is about 60 percent larger than Earth, placing it in a class of planets dubbed "super-Earths," with an orbit of 385 days. That's much different to years on other, closer planets to Earth. But I would like to elaborate few points. Its star is much cooler and redder than our Sun. A superhabitable planet would have a thicker atmosphere than Earth and a higher level of oxygen. 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. 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. No Jupiter analogue for Kepler-452b might mean no water and therefore, no recognisable life. 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. Kepler-452b is larger than Earth, but its 385-day orbit is only 5 per cent longer. ", Dr Daniel Brown, an astronomy expert at Nottingham Trent University, said: "Kepler 452b receives the same kind of spectrum and intensity of light as we do on Earth. A lightyear is the distance that a beam of light can travel in a year. Want an ad-free experience?Subscribe to Independent Premium. Kristen Walbolt 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. 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. As a result Kepler 22b is considered as one of the best exoplanet candidates for habitability. Light from the Sun takes around eight minutes to reach Earth, so naturally, a trip to Kepler 452b would take an incredibly long time. This set of travel posters envision a day when the creativity of scientists and engineers will allow us to do things we can only dream of now. Everything about Kepler 452b - from its size, the length of its years, the estimated conditions on the surface - is very similar to Earth. Pat Brennan A year on Venus, sometimes the closest planet to the Earth, lasts only 88 Earth-days. Kepler-22b is in the "habitable zone," the region where liquid water could exist on a planet’s surface. 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. Due to the sheer scale of this comment community, we are not able to give each post the same level of attention, but we have preserved this area in the interests of open debate. 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. These frozen seas formed in the colder outer solar system and were kicked towards Earth by Jupiter’s huge gravitational tug. Please be respectful when making a comment and adhere to our Community Guidelines. Kepler 452b is considered the most Earth like planet yet discovered due to its … What the models tell us (with a reasonable degree of probability) is that Kepler 452b is likely to have a dense atmosphere (because of its size) and is likely to have liquid water. The confirmation of Kepler … Want to bookmark your favourite articles and stories to read or reference later? You can find our Community Guidelines in full here. The scientists give it a 97 percent chance of being in the habitable z… Kepler-452b is the most Earth-like planet ever discovered, a place with just enough sunlight to possibly support the crops and house plants of life forms like ourselves. Kepler 452, the planet's star, is around 1.5 billion years older than our Sun. Kepler-452b was discovered in 2015, in data that the Kepler satellite had gathered—before the first phase of its mission ended in 2013, when a reaction wheel, which kept Kepler pointed at the … Site Editor: Since Kepler launched in 2009, twelve planets less than twice the size of Earth have been discovered in the habitable zones of their stars. Today Kepler-452b is receiving 10 percent more energy from its parent star than the Earth is from the Sun. The space telescope's main goal is to find so-called "Goldilocks planets" in the habitable zone of stars — worlds where it's not too cold or hot for liquid water to form. Much more research on the planet is still being done, which will be able to confirm whether anything could thrive on Kepler 452b. Our journalists will try to respond by joining the threads when they can to create a true meeting of independent Premium. The planet has an atmosphere that could contain water and therefore extra-terrestrial life Are you sure you want to mark this comment as inappropriate? The Goldilocks Zone is where the temperature is optimum for life to exist and also for water to exist in liquid state. No Jupiter analogue for Kepler-452b might mean no water and therefore, no recognisable life. ", "People already adapt to heavy weights - humans are built to do this kind of thing. Kepler 452b has been the perfect distance from its star for many billions of years. Despite its likeness to Earth and its orbit around a star at a distance that could allow liquid water to pool on the surface, Kepler-452b does have differences. For one thing, NASA reported, it’s 60 percent larger in diameter than Earth and its orbit is 385 days. Independent Premium Comments can be posted by members of our membership scheme, Independent Premium. Jon Jenkins said that humans could "adapt" to the gravity, possibly becoming "more stocky over many generations. Kepler-452b also orbits a G2-type star, is likely to have a cloud-based atmosphere, has a good chance of being a rocky planet, and has a year that … 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. Explore an interactive gallery of some of the most intriguing and exotic planets discovered so far. And since plant photosynthesis is what produces the air we breathe, that means this essential building block of life has a good chance of living on Kepler 452b. The existing Open Comments threads will continue to exist for those who do not subscribe to Independent Premium. A artist's comparison of Kepler-452b and 51 PEG b, {{#verifyErrors}} {{message}} {{/verifyErrors}} {{^verifyErrors}} {{message}} {{/verifyErrors}}, Earth 2.0: What we know about Earth-like planet Kepler 452b, data-gathering by the Kepler space telescope, to its star, it will be too hot to host life, data analysis lead at NASA's Ames Research Centre, as far as we know, this is essential for supporting life, this doesn't mean it couldn't support life, photosynthesis is what produces the air we breathe, distance that a beam of light can travel in a year, that recently took the amazing pictures of Pluto, 'Think twice before replying to aliens', warns scientist, You may not agree with our views, or other users’, but please respond to them respectfully, Swearing, personal abuse, racism, sexism, homophobia and other discriminatory or inciteful language is not acceptable, Do not impersonate other users or reveal private information about third parties, We reserve the right to delete inappropriate posts and ban offending users without notification. Kepler 452b is warm, possibly wet, and might be able to host plant life - however, it's 1,400 lightyears away. Light travels at over 670 million miles per hour. Kepler-452b is in what we call the habitable zone. Jon Jenkins told the press conference: "The sunshine from Kepler's star is very similar to sunshine from our own star, and plants could be able to photosynthesise just the same. Although the planet is far too far away to photograph, advanced Nasa technology means we know a surprising amount about this 'New Earth'. It would have a slightly longer 385 dayyear. Assuming a density close to that of Earth, Kepler-452b would have a mass about five times more than the Earth. Kepler-452b is the first planet orbiting a star about the same size and temperature as the sun. Are you sure you want to delete this comment? When looking for planets that might support life, scientists start with the habitable zone. We don’t know whether life exists on Kepler-452b, but we do know that it has some things in common with the Earth. Science Writer: A superhabitable planet would have shallow oceans. This means plants from our planet could grow there if it were rocky and had an atmosphere. 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. When looking for planets that might support life, scientists start with the habitable zone. It allows our most engaged readers to debate the big issues, share their own experiences, discuss real-world solutions, and more. If you have a question you’d like an expert to answer, send it to curiouskids@theconversation.com. The habitable zone, also known as the 'Goldilocks Zone', is an area around a star which has just the righttemperature to allow for liquid water to exist. So if you're planning to take a trip to Earth 2.0, don't book your ticket until they make slightly faster spacecrafts. Proclaimed by NASA, travelling to Kepler-452b seems to be an impossible task due to the shortage of fuel to travel to this humongous distance. We won’t be able to answer every qu… Scientists don’t know if Kepler-452b can support life. The human body has an amazing ability to repair itself - so over time, humans could adapt.". The atmosphere of Kepler-442b is unknown. To put that in perspective, early, primitive humans only evolved around 2.5 million years ago. Kepler-186f, the first Earth-sized extrasolar planet to be found within its star’s habitable zone—the orbital region where an Earth-like planet could possess liquid water on its surface and thus possibly support life.Kepler-186f was discovered in 2014 in data taken by the Kepler satellite before its mission ended the previous year.The planet has a radius 1.11 times that of Earth. 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