A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Credit: MARK GARLICK/SCIENCE PHOTO A super-Earth planet ... of the habitable zone, orbits at 0.72 astronomical units (108 million km/67 million miles) from our sun. The climate on such a world ...

Earth's orbital eccentricity is 0.017; Mars' is 0.055, and Mercury's is 0.206. HD 20794d's orbit is more elongated than any planet in our solar system , with an eccentricity of 0.4.

When you buy through links on our articles, Future and its syndication partners may earn a commission. A super-Earth planet that dips in and out of its star's habitable zone has been discovered just ...

“We are reaching the end of what we thought was a safe zone for humanity ... surge is a blip or whether it marks a change in Earth’s climate system that means global warming is speeding ...

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An international group of scientists, led by King's College London,has revealed how continued global warming will lead to more parts of the planet ...

"If we want to predict the effects of climate change on Earth's water resources ... Currently, new rainfall tends to linger in the root zone where it mixes with existing soil water (i.e., previous ...