Sentences with phrase «support liquid water on»

Because planets either too close to or too far from their host stars will be at temperatures that cause water either to boil or to freeze, astrobiologists define a «habitable zone,» a range of orbital distances within which planets can support liquid water on their surfaces.

In them a planet might still be able to support liquid water on its surface if more exotic atmospheric compositions are allowed.

These planets in the habitable zones of their stars, while able to support liquid water on their surfaces, develop in dry environments and need to have ice sent in from farther out.

In a paper published in Geophysical Research Letters, researchers found that interactions between methane, carbon dioxide and hydrogen in the early Martian atmosphere may have created warm periods when the planet could support liquid water on the surface.

Because the stars are also faint, planets can be located close to the star and still have a temperature that supports liquid water on the surface.

Not exact matches

Located 620 light - years away, it is the first planet found by NASA's Kepler space telescope to reside in its star's habitable zone — a region that can support liquid water, a key requirement for life on Earth.

«Here was a planet with all the elements needed to support life in its atmosphere, with evidence of liquid water in the past, and yet there was no life --[as if] Mars had the lights on, but nobody was home,» he says.

It also offers among others an answer to the long - standing question of where the energy that can support water in liquid form on the small, cryovulcanic moon far from the sun comes from.

She was suggesting that Europa's ocean was not its only source of liquid water; the moon also harbored hidden lakes far closer to vital molecules on the surface, perhaps close enough to support miniature habitable ecosystems.

Climate models suggest the innermost planets, TRAPPIST - 1b, c and d, are probably too hot to support liquid water, except maybe on a small fraction of their surfaces.

All of the planet candidates are within the habitable zone, the orbital area that can support the existence of liquid water on the surface, and are considered Super-Earths.

The liquid water habitable zone provides the best observational constraint on where we would expect to find planets that could support conscious observers like us, and this study examines the probability of finding oneself on a planet in the habitable zone of a yellow dwarf star, compared to a red dwarf.

A world with an iron core, rocky mantle and enough water on the surface to create liquid water oceans that could support life.

Since K2 - 18b is likely rocky, this means the planet could have liquid water on its surface, which is one of many conditions for supporting life.

Two of these planets, the researchers say, might barely be on the edge of the habitable zone, that not - too - hot, not - too - cold region that can potentially support liquid water and even life.

Of the 135 planets confirmed so far, only a few are thought to be in the habitable (or «Goldilocks») zone, where conditions on the planet's surface can support surface liquid water.

If the models can accurately portray the Martian atmosphere billions of years ago, scientists might be able to answer critical questions like whether the atmosphere was once substantial enough to sustain liquid water on its surface and support life.

Clues on the Martian surface, including features resembling dry riverbeds and minerals that only form in the presence of water, suggest Mars once had a denser atmosphere that supported the presence of liquid water on the surface.

Four and a half billion years after its birth, the shrouded planet is much too hot to support the presence of liquid water on its surface because of its dense carbon dioxide atmosphere and sulfuric acid clouds, which retain too much radiative heat from the Sun through a runaway greenhouse effect.