SEE ALSO: NASA scientist viewed first Voyager images ... support life as we know it. You can see a conception of the planet's strange orbit below. The outer planet is the super-Earth HD 20794 ...

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North Dakota is depressingly underrated, but don't let that deter you: the state is jam-packed with delightful "hidden" gems ...

Winter in Alaska has waterfalls frozen mid-cascade, ice caves so blue they look unreal, and lakes so clear you can skate across them like glass.

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HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

A newly confirmed exoplanet around a nearby sunlike star might be astronomers’ best chance yet to look for life beyond the ...

It is located in a star system less than 20 light-years away, making it one of the closest candidates for further research.

The exoplanet HD 20794d swoops in and out of its habitable zone every few hundred days, making for an extreme climate.

In turn, that will lead to potentially devastating impacts for all life on Earth. Professor Stroeve says: ‘Summer sea ice for sure will be gone well before 2100 but there will be several months ...

But how well do you really know our planetary neighbor? This quiz of 15 questions will test your knowledge of Mars' size, surface and history, as well as scientists' attempts to study it. Remember to ...