hd 40307g facts

7 de janeiro de 2021

This is a computer generated simulation of HD 40307g as seen from space. For the planet HD 40307g, our RTEM predicts a late shutdown of the dynamo t dyn ~ 4 Gyr. "Just as Goldilocks liked her porridge to be neither too hot nor too cold but just right, this planet or indeed any moons that it has lie in an orbit comparable to Earth, increasing the probability of it being habitable. The super-Earth exoplanet HD 40307g, 44 light-years away, is seven times the Earth's mass and may have liquid water on its surface, making it a candidate to support alien life. See more ideas about Astronomy, Space and astronomy, Space exploration. The other two newfound exoplanets are probably too hot to support life as we know it, researchers said. If HD 40307g is a rocky planet its gravity would be at least twice as strong as it is on Earth. We're also on Facebook and Google+. Super Earth Space Facts. Udvekslingsstudent hvilken organisation. HD 40307g - Experience the Gravity of a Super Earth - NASA JPL Space Tourism Poster Wall Art for Office, Classroom, Home, School, Kids Gift Nasa ExoPlanet Travel Poster Super Earth HD 40307g NASA/JPL Space Travel Poster Great Gift idea for Kids Room Office man cave Wall Art Print Twice as big in volume as the Earth, HD 40307g straddles the line between Super-Earth and mini-Neptune and scientists arent sure if it has a rocky surface or. HD 40307 g is an exoplanet orbiting in the habitable zone of HD 40307. All rights reserved. NASA HD 40307g Exoplanet Series canvas printing print home decor art print photo magnets woodcrafthander. Experience the Gravity of a Super Earth. Copyright 2012 SPACE.com, a TechMediaNetwork company. Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface or one that's buried beneath thick layers of gas and ice. The planet orbits the star HD 40307 every 4.3 Earth days, corresponding of its location at approximately 0.047 astronomical units from the star. We made it easy for you to exercise your right to vote! 11) HD 40307g Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface or one that's buried beneath thick layers of gas and ice. HD 40307g is 42 light years from Earth. The planet orbits a small orange dwarf star which emits 75% less energy than our sun. HD 85512b is 36 light years from Earth. Among the six exoplanets that orbit their 42 light year distant star which rests in the Southern hemisphere constellation Pictor, this super-Earth, named HD 40307g, circles in […] One thing is certain though: at eight time the Earth’s mass, its gravitational pull is … HD 40307g is eight times the size of the Earth and is situated 89.8 million kilometres from its Sun. A jam-packed extrasolar system. The celestial body orbits its star at a distance of ninety million kilometres, placing it at its system’s Goldilocks Zone. HD 85512b orbits in the habitable zone of its host star, an area where temperatures are warm enough to sustain liquid water. This set of 360 surfaces and travel posters envision a day when the creativity of scientists and engineers will allow us to do things we can only dream of now. ", HD 40307g is one of three newly discovered worlds around the parent star, which was already known to host three planets. … The newfound exoplanet, a so-called "super-Earth" called HD 40307g, is located inside its host star's habitable zone, a just-right range of distances where liquid water may exist on a world's surface. From shop woodcrafthander. Planet hd 21749b. The star is slightly less powerful than our sun and the planet that is in the star’s habitable zone is the sixth planet, HD 40307 g. ©2021 Verizon Media. Follow SPACE.com senior writer Mike Wall on Twitter @michaeldwall or SPACE.com @Spacedotcom. The system’s main star, HD 40307, is a small, cool and orange-coloured star that is substantially less-massive than our sun. Astronomers have detected an alien planet that may be capable of supporting life as we know it — and it's just a stone's throw from Earth in the cosmic scheme of things. HD 40307g is forty-two light-years from Earth in the constellation Pictor. In the new study, the research team re-analyzed observations of the HD 40307 system made by an instrument called the High Accuracy Radial velocity Planet Searcher, or HARPS. Twice as big in volume as the Earth, HD 40307g straddles the line between “Super-Earth” and “mini-Neptune” and scientists aren’t sure if it has a rocky surface or one that’s buried beneath thick layers of gas and ice. Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface … The planet orbits a small orange dwarf star called HD 40307. HD 40 307 System consists of six planets, HD 40307g is the outermost planet in this system. By: Mike Wall Fact check: Some of viral post's facts that 'stand up for the Golden State' lack context. Published: 11/07/2012 07:09 PM EST on SPACE.com. Rather, HD 40307g probably rotates freely just like our planet does, showing each side of itself to the star in due course. Sep 10, 2015 - Explore Andrew Kudwa's board "Fun Stuff" on Pinterest. It was discovered by ... There’s never been a more important time to explain the facts. Nov 4, 2018 - Explore Semper Hotwheels's board "Space", followed by 833 people on Pinterest. It is located 42 light-years away in the direction of the southern constellation Pictor. The star HD 40307 is slightly smaller and less luminous than our own sun. One thing is certain, though: at eight times the Earth's mass, its gravitational pull is … One thing is certain though: at eight times the Earth’s mass, its … "If I had to guess, I would say 50-50," Tuomi told SPACE.com via email. It's a planet that is as close as 42 light-years away that could very well be suitable for liquid water and life. Kinksburg. (For comparison, Earth zips around the sun from about 93 million miles, or 150 million km, away.) The researchers' new analysis techniques enabled them to spot three more super-Earths around the star, including HD 40307g, which is thought to be at least seven times as massive as our home planet. The planet orbits an orange dwarf star which has around two thirds the mass of our sun. So if our earth gets totally trashed, we may be able to fly there to start anew there. The finds thus boost the star's total planetary population to six. Sultan of samosas. Super-Earths have been spotted in other stars' habitable zones before. Let's see what future observations bring. Cosmos. Candidates like 51 Pegasi B, which was the first exoplanet to be discovered and the Super Earth HD 40307g only have posters up for grabs. Another sunny day on Kepler-16b. HD 40307g is the outermost of the system’s six planets, orbiting at an average distance of 56 million miles (90 million kilometers) from the star. Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface or one that's buried beneath thick layers of gas and ice. Scholarship meaning. The lack of tidal locking "increases its chances of actually having Earth-like conditions," Tuomi said. HD 40307g is more than 7 times bigger than earth, which would reduce crowds, because no one likes waiting in a 5 hour line for a freakin coffee! The planet was discovered in October 2012 by a combined British and Dutch team of astronomers. The planet orbits a small orange dwarf star which emits 75% less energy than our sun. This zone is the region around the star that isn’t too close (so too hot) or too far (so too cold) for liquid water to exist on a planet. Add your voice! Sich. The instrument allows astronomers to pick up the tiny gravitational wobbles an orbiting planet induces in its parent star. Hubble Space Space Telescope Space And Astronomy Astronomy Facts Astronomy Science Planetary Science. (For comparison, Earth zips around the sun from about 93 million miles, or 150 million km, away.). "Discoveries like this are really exciting, and such systems will be natural targets for the next generation of large telescopes, both on the ground and in space," David Pinfield of the University of Hertfordshire, who was not involved in the new study, said in a statement. Summary Relationship Of The Sun To Earth Siyavula. The HD 40307 system consists of six planets, HD 40307g is the outermost planet in the system. Huge Super Earth Potentially Habitable Alien Pla Hd 40307g. The other five planets in the system orbit closer to their host star than Mercury orbits the sun. This material may not be published, broadcast, rewritten or redistributed. The super-Earth exoplanet HD 40307g, 44 light-years away, is seven times the Earth's mass and may have liquid water on its surface, making it a candidate to support alien life. This newly discovered planet, HD 40307g is in the perfect place in its star system to have liquid water! However, being around a K star ( M ~ 0.7), the stellar wind and XUV radiation have probably decreased enough that they do not presently represent a real threat to its atmosphere. Astronomers had previously detected three super-Earths — planets a bit more massive than our own — around the star, all of them in orbits too close-in to support liquid water. Sistema Solar Solar System Planets Alien Worlds Fantasy Setting Space Theme Interstellar Space Exploration Sci … [Video: Super Earth May Have Liquid Water]. HD 40307g orbits in the habitable zone, an area around a star where temperatures are warm enough to allow liquid water. Curious Kids What Makes The Earth Spin On Its Axis Every Day. Kepler-22b lies 600 light-years away, which is not terribly far considering that our Milky Way galaxy is about 100,000 light-years wide. HD 40307g is the outermost of the system's six planets, orbiting at an average distance of 56 million miles (90 million kilometers) from the star. Originally thought to host just three planets, HD 40307 was recently discovered to be smuggling three more distant worlds – one of which might be Earth’s over-sized twin. And the planet lies a mere 42 light-years away from Earth, meaning that future telescopes might be able to image it directly, researchers said. Planet hd 10054 b. 2. The planet was discovered by the radial velocity method, using the European Southern Observatory's HARPS apparatus by a team of astronomers led by Mikko Tuomi at the University of Hertfordshire and Guillem Anglada-Escude of the University of Göttingen, Germany. News Nasa Study Solves Two Mysteries About Wobbling Earth. A second poster shows an astronaut free-falling to experience the powerful gravity over HD 40307g, a "Super Earth" 44 light years -- or 264 trillion miles -- away. Super-Earth Planet: Potentially Habitable Alien World Explained (Infographic), The Top 5 Potentially Habitable Alien Planets, Planets Large and Small Populate Our Galaxy (Infographic). What Is The Rotation Of Earth Universe Today. HD 40307g.Remember that name. In astronomical terms HD 40307g is relatively close to Earth, in the near future space based Tv7 yliluonnollista. HD 40307 is a dwarf orange star, which is bigger than a red star but smaller than a yellow star, that is 44 light years away from us in the Pictor constellation and there are six planets that orbit it. HD 40307g may or may not be a rocky planet like Earth, said study lead author Mikko Tuomi, also of the University of Hertfordshire. For example, a team using NASA's prolific Kepler Space Telescope announced the discovery of the potentially habitable world Kepler-22b in December 2011. HD 40307 b is the second lightest planet discovered in the system, with at least 4.2 times the mass of the Earth. ", HD 40307g is the outermost of the system's six planets, orbiting at an average distance of 56 million miles (90 million kilometers) from the star. HD 40307g. Further, HD 40307g's orbit is distant enough that the planet likely isn't tidally locked to the star like the moon is to Earth, researchers said. All rights reserved. Mahna mahna gif. The new study has been accepted for publication in the journal Astronomy & Astrophysics. Planet hd 18977 3b. Twice as big in volume as the Earth, HD 40307g straddles the line between “Super-Earth” and “mini-Neptune” and scientists aren’t sure if it has a rocky surface or one that’s buried beneath thick layers of gas and ice. 6. See more ideas about Space and astronomy, Electrolux design, Black camaro. The planet is 42 light-years away towards the constellation Pictor. The third new planet, called HD 40307g is further away. Further study of the planet is needed to determine its composition and atmospheric conditions. "The longer orbit of the new planet means that its climate and atmosphere may be just right to support life," study co-author Hugh Jones, of the University of Hertfordshire in England, said in a statement. But HD 40307g — which officially remains a "planet candidate" pending confirmation by follow-up studies — sits comfortably in the middle of the star's habitable zone. 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Become a founding member and help shape HuffPost 's next chapter, Artists ' Conceptions of Extrasolar planets the of... 150 million km, away. ) locking `` increases its chances of having! Super-Earth '' alien planet that is as close as 42 light-years away in the zone! Help shape HuffPost 's next chapter, Artists ' Conceptions of Extrasolar planets 42 light-years away that could very be! Prolific Kepler Space Telescope Space and Astronomy, Space exploration new planet, HD 40307g orbits in habitable. Space and Astronomy Astronomy facts Astronomy Science Planetary Science which has around two thirds the mass of our sun habitable. Themed to exoplanets while a nonprofit searches for life among them an orbiting planet induces in its star dyn 4... Does, showing each side of itself to the star HD 40307 is slightly smaller and less luminous than sun... Solves two Mysteries about Wobbling Earth, called HD 40307 is forty-two light-years from Earth in the zone... Planets, HD 40307g is eight times the size of the southern constellation Pictor and life Wobbling.... 50-50, '' Tuomi said zips around the sun star HD 40307 every 4.3 Earth days, of. Dyn ~ 4 Gyr too hot to support life as we know it, researchers said 40307g as from. Outermost planet in the perfect place in its parent star, which was known! Million miles, or 150 million km, away. ) star emits 75 % energy. 'S a planet that is in the perfect place in its star Rotation Revolution Education Seattle Pi by Mike... Extrasolar planets Telescope at the La Silla Observatory in Chile ’ s Goldilocks zone ) of parent! The new study has been accepted for publication in the direction of the dynamo t dyn 4... The discovery of the Earth and is situated 89.8 million kilometres from its sun is located 42 light-years away the. Series canvas printing print home decor art print photo magnets woodcrafthander 40307 g is an exoplanet orbiting the!: 11/07/2012 07:09 PM EST on SPACE.com every Day has around two the. The other two newfound exoplanets are probably too hot to support life as we know it, said!

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This is a computer generated simulation of HD 40307g as seen from space. For the planet HD 40307g, our RTEM predicts a late shutdown of the dynamo t dyn ~ 4 Gyr. "Just as Goldilocks liked her porridge to be neither too hot nor too cold but just right, this planet or indeed any moons that it has lie in an orbit comparable to Earth, increasing the probability of it being habitable. The super-Earth exoplanet HD 40307g, 44 light-years away, is seven times the Earth's mass and may have liquid water on its surface, making it a candidate to support alien life. See more ideas about Astronomy, Space and astronomy, Space exploration. The other two newfound exoplanets are probably too hot to support life as we know it, researchers said. If HD 40307g is a rocky planet its gravity would be at least twice as strong as it is on Earth. We're also on Facebook and Google+. Super Earth Space Facts. Udvekslingsstudent hvilken organisation. HD 40307g - Experience the Gravity of a Super Earth - NASA JPL Space Tourism Poster Wall Art for Office, Classroom, Home, School, Kids Gift Nasa ExoPlanet Travel Poster Super Earth HD 40307g NASA/JPL Space Travel Poster Great Gift idea for Kids Room Office man cave Wall Art Print Twice as big in volume as the Earth, HD 40307g straddles the line between Super-Earth and mini-Neptune and scientists arent sure if it has a rocky surface or. HD 40307 g is an exoplanet orbiting in the habitable zone of HD 40307. All rights reserved. NASA HD 40307g Exoplanet Series canvas printing print home decor art print photo magnets woodcrafthander. Experience the Gravity of a Super Earth. Copyright 2012 SPACE.com, a TechMediaNetwork company. Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface or one that's buried beneath thick layers of gas and ice. The planet orbits the star HD 40307 every 4.3 Earth days, corresponding of its location at approximately 0.047 astronomical units from the star. We made it easy for you to exercise your right to vote! 11) HD 40307g Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface or one that's buried beneath thick layers of gas and ice. HD 40307g is 42 light years from Earth. The planet orbits a small orange dwarf star which emits 75% less energy than our sun. HD 85512b is 36 light years from Earth. Among the six exoplanets that orbit their 42 light year distant star which rests in the Southern hemisphere constellation Pictor, this super-Earth, named HD 40307g, circles in […] One thing is certain though: at eight time the Earth’s mass, its gravitational pull is … HD 40307g is eight times the size of the Earth and is situated 89.8 million kilometres from its Sun. A jam-packed extrasolar system. The celestial body orbits its star at a distance of ninety million kilometres, placing it at its system’s Goldilocks Zone. HD 85512b orbits in the habitable zone of its host star, an area where temperatures are warm enough to sustain liquid water. This set of 360 surfaces and travel posters envision a day when the creativity of scientists and engineers will allow us to do things we can only dream of now. ", HD 40307g is one of three newly discovered worlds around the parent star, which was already known to host three planets. … The newfound exoplanet, a so-called "super-Earth" called HD 40307g, is located inside its host star's habitable zone, a just-right range of distances where liquid water may exist on a world's surface. From shop woodcrafthander. Planet hd 21749b. The star is slightly less powerful than our sun and the planet that is in the star’s habitable zone is the sixth planet, HD 40307 g. ©2021 Verizon Media. Follow SPACE.com senior writer Mike Wall on Twitter @michaeldwall or SPACE.com @Spacedotcom. The system’s main star, HD 40307, is a small, cool and orange-coloured star that is substantially less-massive than our sun. Astronomers have detected an alien planet that may be capable of supporting life as we know it — and it's just a stone's throw from Earth in the cosmic scheme of things. HD 40307g is forty-two light-years from Earth in the constellation Pictor. In the new study, the research team re-analyzed observations of the HD 40307 system made by an instrument called the High Accuracy Radial velocity Planet Searcher, or HARPS. Twice as big in volume as the Earth, HD 40307g straddles the line between “Super-Earth” and “mini-Neptune” and scientists aren’t sure if it has a rocky surface or one that’s buried beneath thick layers of gas and ice. Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface … The planet orbits a small orange dwarf star called HD 40307. HD 40 307 System consists of six planets, HD 40307g is the outermost planet in this system. By: Mike Wall Fact check: Some of viral post's facts that 'stand up for the Golden State' lack context. Published: 11/07/2012 07:09 PM EST on SPACE.com. Rather, HD 40307g probably rotates freely just like our planet does, showing each side of itself to the star in due course. Sep 10, 2015 - Explore Andrew Kudwa's board "Fun Stuff" on Pinterest. It was discovered by ... There’s never been a more important time to explain the facts. Nov 4, 2018 - Explore Semper Hotwheels's board "Space", followed by 833 people on Pinterest. It is located 42 light-years away in the direction of the southern constellation Pictor. The star HD 40307 is slightly smaller and less luminous than our own sun. One thing is certain, though: at eight times the Earth's mass, its gravitational pull is … One thing is certain though: at eight times the Earth’s mass, its … "If I had to guess, I would say 50-50," Tuomi told SPACE.com via email. It's a planet that is as close as 42 light-years away that could very well be suitable for liquid water and life. Kinksburg. (For comparison, Earth zips around the sun from about 93 million miles, or 150 million km, away.) The researchers' new analysis techniques enabled them to spot three more super-Earths around the star, including HD 40307g, which is thought to be at least seven times as massive as our home planet. The planet orbits an orange dwarf star which has around two thirds the mass of our sun. So if our earth gets totally trashed, we may be able to fly there to start anew there. The finds thus boost the star's total planetary population to six. Sultan of samosas. Super-Earths have been spotted in other stars' habitable zones before. Let's see what future observations bring. Cosmos. Candidates like 51 Pegasi B, which was the first exoplanet to be discovered and the Super Earth HD 40307g only have posters up for grabs. Another sunny day on Kepler-16b. HD 40307g is the outermost of the system’s six planets, orbiting at an average distance of 56 million miles (90 million kilometers) from the star. Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface or one that's buried beneath thick layers of gas and ice. Scholarship meaning. The lack of tidal locking "increases its chances of actually having Earth-like conditions," Tuomi said. HD 40307g is more than 7 times bigger than earth, which would reduce crowds, because no one likes waiting in a 5 hour line for a freakin coffee! The planet was discovered in October 2012 by a combined British and Dutch team of astronomers. The planet orbits a small orange dwarf star which emits 75% less energy than our sun. This zone is the region around the star that isn’t too close (so too hot) or too far (so too cold) for liquid water to exist on a planet. Add your voice! Sich. The instrument allows astronomers to pick up the tiny gravitational wobbles an orbiting planet induces in its parent star. Hubble Space Space Telescope Space And Astronomy Astronomy Facts Astronomy Science Planetary Science. (For comparison, Earth zips around the sun from about 93 million miles, or 150 million km, away.). "Discoveries like this are really exciting, and such systems will be natural targets for the next generation of large telescopes, both on the ground and in space," David Pinfield of the University of Hertfordshire, who was not involved in the new study, said in a statement. Summary Relationship Of The Sun To Earth Siyavula. The HD 40307 system consists of six planets, HD 40307g is the outermost planet in the system. Huge Super Earth Potentially Habitable Alien Pla Hd 40307g. The other five planets in the system orbit closer to their host star than Mercury orbits the sun. This material may not be published, broadcast, rewritten or redistributed. The super-Earth exoplanet HD 40307g, 44 light-years away, is seven times the Earth's mass and may have liquid water on its surface, making it a candidate to support alien life. This newly discovered planet, HD 40307g is in the perfect place in its star system to have liquid water! However, being around a K star ( M ~ 0.7), the stellar wind and XUV radiation have probably decreased enough that they do not presently represent a real threat to its atmosphere. Astronomers had previously detected three super-Earths — planets a bit more massive than our own — around the star, all of them in orbits too close-in to support liquid water. Sistema Solar Solar System Planets Alien Worlds Fantasy Setting Space Theme Interstellar Space Exploration Sci … [Video: Super Earth May Have Liquid Water]. HD 40307g orbits in the habitable zone, an area around a star where temperatures are warm enough to allow liquid water. Curious Kids What Makes The Earth Spin On Its Axis Every Day. Kepler-22b lies 600 light-years away, which is not terribly far considering that our Milky Way galaxy is about 100,000 light-years wide. HD 40307g is the outermost of the system's six planets, orbiting at an average distance of 56 million miles (90 million kilometers) from the star. Originally thought to host just three planets, HD 40307 was recently discovered to be smuggling three more distant worlds – one of which might be Earth’s over-sized twin. And the planet lies a mere 42 light-years away from Earth, meaning that future telescopes might be able to image it directly, researchers said. Planet hd 10054 b. 2. The planet was discovered by the radial velocity method, using the European Southern Observatory's HARPS apparatus by a team of astronomers led by Mikko Tuomi at the University of Hertfordshire and Guillem Anglada-Escude of the University of Göttingen, Germany. News Nasa Study Solves Two Mysteries About Wobbling Earth. A second poster shows an astronaut free-falling to experience the powerful gravity over HD 40307g, a "Super Earth" 44 light years -- or 264 trillion miles -- away. Super-Earth Planet: Potentially Habitable Alien World Explained (Infographic), The Top 5 Potentially Habitable Alien Planets, Planets Large and Small Populate Our Galaxy (Infographic). What Is The Rotation Of Earth Universe Today. HD 40307g.Remember that name. In astronomical terms HD 40307g is relatively close to Earth, in the near future space based Tv7 yliluonnollista. HD 40307 is a dwarf orange star, which is bigger than a red star but smaller than a yellow star, that is 44 light years away from us in the Pictor constellation and there are six planets that orbit it. HD 40307g may or may not be a rocky planet like Earth, said study lead author Mikko Tuomi, also of the University of Hertfordshire. For example, a team using NASA's prolific Kepler Space Telescope announced the discovery of the potentially habitable world Kepler-22b in December 2011. HD 40307 b is the second lightest planet discovered in the system, with at least 4.2 times the mass of the Earth. ", HD 40307g is the outermost of the system's six planets, orbiting at an average distance of 56 million miles (90 million kilometers) from the star. HD 40307g. Further, HD 40307g's orbit is distant enough that the planet likely isn't tidally locked to the star like the moon is to Earth, researchers said. All rights reserved. Mahna mahna gif. The new study has been accepted for publication in the journal Astronomy & Astrophysics. Planet hd 18977 3b. Twice as big in volume as the Earth, HD 40307g straddles the line between “Super-Earth” and “mini-Neptune” and scientists aren’t sure if it has a rocky surface or one that’s buried beneath thick layers of gas and ice. 6. See more ideas about Space and astronomy, Electrolux design, Black camaro. The planet is 42 light-years away towards the constellation Pictor. The third new planet, called HD 40307g is further away. Further study of the planet is needed to determine its composition and atmospheric conditions. "The longer orbit of the new planet means that its climate and atmosphere may be just right to support life," study co-author Hugh Jones, of the University of Hertfordshire in England, said in a statement. But HD 40307g — which officially remains a "planet candidate" pending confirmation by follow-up studies — sits comfortably in the middle of the star's habitable zone. 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