Another life-possible planet found

Another life-possible planet found

WASHINGTON — Astronomers(खगोल-विद्या विशारद)  have found yet another planet that seems to have just the right Goldilocks combination for life: Not so hot and not so cold. It’s not so far away, either. This new, big, dense planet is rocky, like Earth, and has the right temperatures for water, putting it in the habitable zone for life, according to a study published Wednesday in the journal Nature . This artist's rendering depicts LHS 1140b, a newly discovered rocky planet in the habitable(रहने योग्य) zone for life, surrounding its small, faint red host star. 

This artist's rendering depicts LHS 1140b, a newly discovered rocky planet in the habitable zone for life, surrounding its small, faint red host star. M. Weiss Harvard-Smithsonian Center for Astrophysics via AP

It’s the fifth such life-possible planet outside our solar system revealed in less than a year, but still relatively nearby Earth. Rocky planets within that habitable zone of a star are considered(माना जाता है) the best place to find evidence of some form of life.

“It is astonishing to live in a time when discovery of potentially habitable worlds is not only common place but proliferating(प्रजनन),” said MIT astronomer Sara Seager, who wasn’t part of the study.

The first planet outside our solar system was discovered in 1995, but thanks to new techniques and especially NASA’s planet-hunting Kepler telescope, the number of them has exploded in recent years. Astronomers have now identified 52 potentially habitable planets and more than 3,600 planets outside our solar system.

The latest discovery, called LHS 1140b, regularly passes in front of its star, allowing astronomers to measure its size and mass. That makes astronomers more confident that this one is rocky, compared to other recent discoveries.

The new planet was found using eight small telescopes in Chile.