Hubble discovers a planet vanishing at record speed: All you need to know

Astronomers using the Hubble Space Telescope have discovered a planet roughly the size of Neptune, evaporating at a rate 100 times faster than a previously identified exoplanet of similar size. The findings, published in the journal of Astronomy & Astrophysics, advance astronomers' knowledge about how planets evolve. The speed and distance at which planets orbit their respective blazing stars can determine each planet's fate -- whether the planet remains a longstanding part of its solar system or evaporates into the universe's dark graveyard. "This is the smoking gun that planets can lose a significant fraction of their entire mass," said David Sing, a professor at Johns Hopkins University in the US. "GJ 3470b is losing more of its mass than any other planet we seen so far; in only a few billion years from now, half of the planet may be gone," Sing said. Planets such as "super" Earths and "hot" Jupiters orbit more closely to their stars and are therefore hotter, causing the ...

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