Ultralight planets with cotton candy density discovered

Researchers of distant planets periodicallyencounter extremely unusual phenomena that go beyond human perception. One of the last such discoveries was “down-padded planets” - a new young class of exoplanets, with a density approaching the density of cotton candy familiar to everyone. Moreover, these ultralight giants are tens of times larger than our Earth.

The first planets with ultralight density werediscovered in 2012 in the Kepler 51 system. Using the capabilities of the NASA Hubble Space Telescope, astronomers after two years were able to evaluate the parameters of the planets, which caused bewilderment. According to calculations, three giants, the sizes of which are comparable to the sizes of "our" Jupiter, weigh less than 0.01 of its mass.

More precise changes or surface studiesplanets do not allow high clouds enveloping celestial bodies. Astronomers claim that the impression may be that the planet consists of one atmosphere. One hypothesis of the low density of the planets is the assumption of a small astronomical age of the planets, amounting to only 500 million years, in contrast to 4.6 billion years of the existence of the Sun.

At the same time, the planets are gradually approaching"Their" star, which will inevitably lead to a loss of atmosphere. Nevertheless, the launch into orbit of the new NASA telescope by James Webb, with a system operating on infrared light, will allow a more detailed study of the atmosphere of the mysterious "down planets."

Source: phys