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NASA Has Found Earth`s "Bigger, Older Cousin" from Riri's blog

Scientists say the discovery “brings us one step closer to finding an Earth 2.0.”

NASA announced Thursday it has discovered a planet that is a "bigger, older cousin" to our planet, which they called a big step toward finding "Earth 2.0"



Scientists say the planet is unique because it is the smallest planet found so far that is both in the so-called habitable zone and orbits around a sun that is similar to our own.

In simpler terms, Kepler-452b and its sun more closely resemble our planet and sun than any other planet NASA has found.

"This exciting result brings us one step closer to finding an Earth 2.0," NASA`s John Grunsfeld said in a press release.

This artist`s concept compares Earth (left) to the new planet, called Kepler-452b.

NASA/JPL-Caltech/T. Pyle

It is also older than Earth by about 1.5 billion years. Scientists say they consider the planet to be Earth`s "older, bigger cousin."

"It`s awe-inspiring to consider that this planet has spent 6 billion years in the habitable zone of its star; longer than Earth," NASA`s Jon Jenkins said. "That`s substantial opportunity for life to arise, should all the necessary ingredients and conditions for life exist on this planet."

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By Riri
Added Jul 26 '15


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