The tiniest planet yet discovered by science was identified circling a star similar to our sun with the help of the Kepler space telescope.

The discovery was made as a part of other pieces of a planetary system called Kepler-37, according to a NASA statement on Wednesday. 

The planet named Kepler-37b is only slightly bigger than Earth's moon and is about 210 light-years from our planet. 

Two other planets, Kepler-37c and Kepler-37d, were discovered in the system and scientists believe that they may be potential candidates where liquid water exists.

However, the planets in the system are not current candidates for any possible colonization in the future as each planet is likely inhospitable as they circle their star at a closer distance than Mercury revolves around the sun.

Scientists believe that the tiny Kepler-37b is mostly rocky and has a blistering surface temperature of around 800 degrees Fahrenheit with no atmosphere.

While Kepler-37b is about one-third the size of Earth, Kepler-37d measured around twice the size of our planet. 

So far the first exoplanets found to orbit a normal star were giants, but as technology has advanced smaller planets are starting to be discovered using Kepler, according to The BBC.

The Kepler telescope found the petite object by staring at its host star and catching the faint darkening that happened when the planet moved in front and blocked its light.

Jack Lissauer, a planetary scientist at NASA's Ames Research Center in Moffett Field, Calif., talked about the significant planetary find.

"Even Kepler can only detect such a tiny world around the brightest stars it observes," said Lissauer in Wednesday's statement from NASA. "The fact we've discovered tiny Kepler-37b suggests such little planets are common, and more planetary wonders await as we continue to gather and analyze additional data." 

The planet Kepler-37b joins the catalogue of more than 860 confirmed exoplanets found in the last two decades, according to The Associated Press.

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