New For 2011: ‘Earth-Sized’ Alien Planet Discovered

New Planet Discovered 2011 – NASA has discovered a new orbiting planet just outside our solar system, making 2011 an important year in space and astronomy. They are known as Kepler-20e and Kepler-20f, but are too close to the sun and out of the so-called “habitable zone” to sustain life. However, there is another one found recently that is far enough away from its sun to be in the habitable zone.

The space agency says Kepler-20e has a radius thats similar to Earth’s while Kepler-20f is a bit larger.

They are approximately 1,000 light-years away in a system with five planets called Kepler-20 and near the constellation Lyra.

In orbit comparison, Kepler-20e completes an orbit around its star every 6.1 days while Kepler-20f completes its orbit every 19.6 days. These are very hot worlds reaching 800 degrees Fahrenheit to more than 1,400 degrees Fahrenheit, which can melt glass. The average day is similar to the planet Mercury.

There are three other planets in the system that are similar to Earth in size. These planets, known as Kepler-20b, Kepler-20c, and Kepler-20d, orbit their star every 3.7, 10.9 and 77.6 days. The orbits of all five planets are lying within Mercury’s orbit in our solar system.

The orbiting star is in the same G-type class as Earth’s sun, but it is a bit cooler and smaller.

On December 5, scientists found a New Planet Discovered in the habitable zone. It’s parent star is called Kepler-22b. However, researchers believe it is too large to have a rocky surface. Kepler-20e and Kepler-20f are Earth-size, but they are in extreme hot conditions because they are too close to their star to have liquid water on the surface.

NASA scientists are trying to solve a mystery on how the planets formed, but do believe they migrated toward their sun, allowing them to maintain their independent sizes.

Planets are detected by using the Kepler space telescope and measuring dips in the brightness of stars and what could be crossing in front of their paths. The science team requires at least three transits to verify a signal as a planet.

Watch the latest video about the planet and the Kepler system.

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