'Super-Earth' has potential for sustaining water. Located 20 light-years away, scientists believe that HD 20794 d could be at an optimal distance from its nearest star to sustain water on its surface.

HD 20794 d orbits a G-type star similar to the Sun and takes 647 days to complete one orbit—40 days fewer than Mars. The planet has a mass 6.6 times greater than Earth, making it easier to study ...

HD 63433 b orbits its star at 0.07 times the distance between Earth and the sun, with a year that lasts 7.1 Earth days. HD 63433 c is slightly larger, around 0.23 times the size of Jupiter, ...

Scientists found an intriguing world in our galaxy. They confirmed the existence of a rocky planet, called a "super-Earth," that's some six times as massive as Earth.While the world HD 20794 d is ...

This is the background to the discovery of super-Earth HD 20794 d by an international team. The new planet lies in an eccentric orbit, so that it oscillates in and out of its star's habitable zone.

Planet Earth is offered here on four HD DVD discs nestled comfortably inside a colorful and beautifully-designed reflective slipcase. With three hour-long episodes fitted per disc, ...

HD 189733b only takes about two Earth days to complete a single orbit around its star, Fu said. That proximity to the star gives the planet a searing average temperature of 1,700 degrees ...

Potentially Habitable "Super-Earth" Discovered Just 20 Light-Years Away Scientists believe the exoplanet HD 20794 d, six times the mass of Earth, could harbour liquid water on its surface.

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The second planet, which received the designation HD 101581 c, is almost the size of the Earth (0.99 Earth radii), while its maximum mass was determined to be 4.2 Earth masses.

HD 189733b only takes about two Earth days to complete a single orbit around its star, Fu said. That proximity to the star gives the planet a searing average temperature of 1,700 degrees ...

For stars such as the Sun or HD 20794, it can extend from 0.7 to 1.5 astronomical units (AU), encompassing not only the orbit of the Earth but also that of Mars in the case of the Sun.