Not just is this planet solidly in the Goldilocks zone - where life could exist on the grounds that it is neither excessively hot nor excessively icy, making it impossible, making it impossible to bolster fluid water - its star resembles a more established cousin of our Sun, the US space office said.
That implies the planet, which is 1,400 light-years away, could offer a look into the World's whole-world destroying future, researchers said.
Known as Kepler 452b, the planet was identified by the US space office's Kepler Space Telescope, which has been chasing for different universes like our own following 2009.
"Kepler 452b is circling a nearby cousin of our Sun, however one that is 1.5 billion years more seasoned," NASA said in an announcement.
Its star is four percent more gigantic than the Sun and 10 percent brighter.
On the off chance that the planet is rough, and researchers accept that it has a superior than even risk of being only that, then it could be amidst a frightful situation, as the warmth from its diminishing star dissipates Kepler 452b's lakes and seas.
"On the off chance that Kepler 452b is without a doubt a rough planet, its area opposite its star could imply that it is simply entering a runaway nursery period of its atmosphere history," said Doug Caldwell, a Quest for Extraterrestrial Knowledge (SETI) Foundation researcher dealing with the Kepler mission.
"The expanding vitality from its maturing sun may be warming the surface and vanishing any seas. The water vapor would be lost from the planet always," he included.
"Kepler 452b could be encountering now what the Earth will experience more than an a long time from now, as the Sun ages and becomes brighter."
- Planetary list -
The Kepler mission propelled in 2009 to scan for exoplanets, which are planets outside our close planetary system, especially those about the extent of Earth or littler.
"Today, and a huge number of revelations later, space experts are on the cusp of discovering something individuals have imagined about for a large number of years - another Earth," NASA said in an announcement.
On Thursday, NASA discharged the most recent list of exoplanet hopefuls, including more than 500 new conceivable planets to the 4,175 officially found by the space-based telescope.
"This list contains our first examination of all Kepler information, and in addition a computerized appraisal of these outcomes," said SETI Foundation researcher Jeffrey Coughlin.
The new inventory incorporates 12 applicants that are not as much as double the width of Earth and which are circling in the tenable zones of their stars.
Of those 12 new hopefuls, Kepler 452b "is the first to be affirmed as a planet," NASA said.
Kepler recognizes conceivable planets by looking for dunks in the brilliance of stars, which could be brought on by a planet going between the star and the telescope.
Other investigative apparatuses are expected to judge whether the planet is gassy or rough.
The Kepler mission has cost NASA about $600 million, and the US space organization said in 2013 that two of its introduction wheels had lost capacity, leaving the space telescope unrecoverable.
In any case, researchers have years to pore over the information it has returned keeping in mind the end goal to contract the quest for Earth-like universes.