According to National Aeronautics and Space Administration (NASA) these exoplanets are positioned in a planetary system 218 light-years away. They have been discovered within the constellation Lyra. 

Astronomers noticed exoplanets Kepler-138c and Kepler-138d with Hubble and the retired Spitzer house telescopes and found water on them. 

The planets, that are about one and a half occasions the dimensions of the Earth, have been found together with its host star by Nasa’s Kepler Space Telescope.

Unique issue of two exoplanets

The distinctive issue of the 2 exoplanets was that watery liquid makes up a big a part of their composition.

Notably, water on these exoplanets wasn’t detected straight. Researchers in contrast the sizes and much of the planets to fashions, conclude {that a} important fraction of their quantity — as much as half of it — must be fabricated from supplies which are lighter than rock however heavier than hydrogen or helium.

The most typical of those candidate materials is water.

Researchers converse

The crew, led by PhD pupil Caroline Piaulet of the Trottier Institute for Research on Exoplanets (iREx) on the University of Montreal, printed an in depth research of a planetary system often known as Kepler-138 within the journal Nature Astronomy.

The researchers maintained that with volumes greater than thrice that of Earth and much twice as huge, planets C and D have a lot decrease densities than Earth.

“Imagine bigger variations of Europa or Enceladus, the water-rich moons orbiting Jupiter and Saturn, however introduced a lot nearer to their star. Instead of an icy floor, Kepler-138 c and d would harbor massive water-vapor envelopes,” explained Piaulet.