Not exact matches
The odds of an alien invasion got a boost from the discovery of vaguely Earth - like planets
around other stars, but we still have no idea if alien civilizations
exist.
While scientists find ever more planets
around other stars and contemplate missions to probe the far reaches of our own solar system, researchers are looking to the extremes of the Earth for clues about what kind of organisms could
exist in the brutal conditions elsewhere.
If the giant planet announced this week actually
exists, we can already explain how it got there - and how it solves a mystery about the worlds we see
around other stars
In the search for
other Earths, the main goal is to find a planet the same size as ours that sits in the habitable zone — the region
around a given
star where planetary surface temperature would be similar to ours, allowing liquid water to
exist.
Astronomers have already identified over 600 planets
around other stars, some of them roughly the size of Earth, and believe many billions more
exist within our galaxy.
Life as we know it couldn't
exist on Titan — but if most of life's needs
exist there, they might
exist on balmier worlds
around other stars.
The huge size of the E-ELT should allow METIS to detect and study exoplanets the size of Mars orbiting Alpha Centauri, if they
exist, as well as
other potentially habitable planets
around other nearby
stars.
This raises the possibility that industrial civilizations might have been
around long before human ones ever
existed — not just
around other stars, but even on Earth itself.
It speaks to the very heart of trying to understand how life may have evolved not just on earth but on
other terrestrial bodies both in our own solar system and indeed
around other stars that have planets that lie in the so - called «habitable zone» (where liquid water can
exist on the surface).
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