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Space research: study finds that unknown planet as heavy as Earth may be free floating in galaxy.

 Space research: study finds that unknown planet as heavy as Earth may be free floating in galaxy.

Astronomers have found an Rogue planet named OGLE-2016-BLG-1928, which is free-floating in the Milky way. These planets are "gravity free of any star" and wander forever in the galaxy.

A team of astronomers has found an independent-floating planet similar to Earth or Mars in space. Scientists call such a planet a "rogue planet". This discovery of a low-mass rogue planet was published in the pre-press site — it has not yet been peer reviewed.

This new planet is named as "OGLE-2016-BLG-1928".

Meanwhile, according to a report in the Deccan Herald, it will take a few more years to confirm the planet's potential free-floating nature.

Unlike Exoplanet, rogue planets do not revolve around a Stars. They are evicted from the parent planetary system in which they form and then drift forever through interstellar space, "gravitating to any star".

This rogue planet has no stars, and its distance from Earth is unconfirmed. These planets do not emit light and hence are difficult to see.

The study noted, "In practice, such objects do not emit any light, but can be detected through gravitational light."

Astronomers discovered this rogue planet during a "microlensing" program lasting 41.5 minutes. A report by states that there is not much time to gather detailed data.

According to the Deccan Herald, in the technique "microlensing", a "lensing" foreground planet is properly aligned with a background star. This then increases the light of the star, creating a light glow.

Two organizations - the Optical Gravitational Lining Experiment (OGLE) collaboration and the Korean Microlensing Telescope Network (KMTN) - work to find such rogue planets.

Scientists believe that in the initial stages of the Solar system, some low-mass planets would be protected from a star's gravitational grip. The report states that the gravitational interaction between a single star and all planets "can sometimes send small planets into space to send for themselves".

The study stated, "According to planetary formation theories, such as the main accretion theory, the specific masses of the emitted planets should be between 0.3 and 1.0 Earth masses."

At present, scientists are unaware of how these planets became cosmic wanderers for the first time, who were detached from any star in the galaxy.

Is life possible on rogue planet?

Animated photo of Rogue planet

Animated photo of Rogue planet

Animated photo of Rogue planet

Scientists say that there is almost zero chance of existence of life on rogue planets because they have no star for heat and energy. "But they are still intriguing, and like everything else, they give clues to how nature works," the report said.

The study states that studying rogue planets is important because "the principles of planet formation and evolution predict the existence of free-floating (rogue) planets, gravity-free for any star".

NASA is designing the Nancy Grace Roman Space Telescope, which will help find rogue planets in the future. The space agency said that the Nancy Grace Roman Space Telescope - or Roman Space Telescope, miniature - is set to launch in mid-2020.

"It will investigate long-term astronomical mysteries, such as the forces behind the expansion of the universe, and the discovery of distant planets beyond our solar system".

How many rogue planet are known so far?

According to Earthsky, about a dozen confirmed rogue planets have been discovered so far. Two such planets were announced last year - OGLE-2012-BLG-1323 and OGLE-2017-BLG-0560.

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