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Astronomers have discovered a new potentially habitable planet about 146 light-years from Earth, which is about the size of Earth and has conditions similar to those of Mars.
The candidate planet, called HD 137010 b, orbits a Sun-like star and is estimated to be about 6% larger than Earth.
An international team of scientists from Australia, the United Kingdom, the United States and Denmark identified the planet using data collected in 2017 by NASA's Kepler space telescope's extended mission, known as K2.
Dr. Chelsea Huang, a researcher at the University of Southern Queensland in Australia, said the planet has an orbit similar to Earth's, lasting about 355 days.
Researchers believe the planet has about a 50% chance of occurring in its star's "habitable zone," the region where conditions could allow liquid water to exist.
"What's particularly exciting about this Earth-sized planet is that its star is only about 150 light-years away from our solar system," said Huang, one of the study's co-authors.
"The next most promising planet around a Sun-like star in the habitable zone, Kepler-186f, is about four times farther away and 20 times fainter," he added.
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