The "MEarth-South" telescope array observed a star-like phenomenon as the planet LHS 1140b passed through LHS 1140.

Britain's "nature" magazine, the United States Space Network 19 co-published news that a moderate temperature of the rocky planet in the passing of small stars occurred.
the distance between the newly discovered "super-Earth" and its main star, its rock formation and the possibility of liquid water, making it the best choice for the current search for extraterrestary life.
in the past 20 years, thousands of exoplanets have been discovered, but the vast majority do not meet the conditions of a "super-Earth": either too hot or too cold, or unable to have a natural environment like Earth's.
TraPPIST-1 system, previously known as the Red Pole, is thought to have seven Earth-like planets, and new research suggests that they may be exposed to frequent and intense radiation, making primitive life difficult to stand on, and that one of them is not Earth-like rocky.
this time, Jason Dittman, an astronomer at the Harvard-Smithsonian Center for Astrophysics, and his colleagues reported that they had observed a dwarf M-star called LHS 1140 through the MEarth-South telescope array.
is a common star in the Milky Way, about 39 light-years from the sun and less than 60 percent of its mass.
team further discovered that the planet LHS 1140b was orbiting through LHS 1140 and that its circular orbit may have existed at the time of its formation.
then, they used 144 radial velocity measurements to pinpoint the planet's radius (1.4 times that of Earth), mass (6.6 times that of Earth), and density to determine its composition by rock.
the planet's "sun" is mild, low by the host star's radiation, and is in the "liveable zone" of the main star, where water can exist in liquid form on the planet's surface.
believe that liquid water is an indispensable element of life's survival.
said the star was the most exciting exoplanet he had seen in the past decade and that the next step would be to collect atmospheric data using the Hubble telescope.
's team suggests that LHS 1140b could be formed at its current location in a similar way to Earth, with a smaller and closer star, meaning that existing and under-construction space telescopes could search for specific gases in the planet's atmosphere.
astronomers hope that there is an atmosphere there.
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