Dark matter could make exoplanets habitable

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Dark matter could help maintain liquid water on the surface of large exoplanets, making it possible for life to emerge, evolve, and survive, even in the absence of additional energy from starlight or other sources.
For a planet to be able to maintain liquid water on its surface, scientists assume it has to …

Exoplanets: The habitable zone not so habitable?

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The hunt for exoplanets is still going, and their number constantly growing (see here, and here). Among all the worlds orbiting other stars, scientists hope to find what could be another Earth, another planet that could harbor life as we know it. For this to be possible, a planet has …

First Earth-sized exoplanet discovered

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The discovery of Kepler-10b, the first rocky extrasolar planet, was confirmed yesterday by NASA’s Kepler mission. Only 1.4 times the size of Earth, it is the smallest exoplanet ever discovered.
Because its size is comparable to that of Earth, this is a first step to discovering how common such planets are, …

Create your own exoplanet

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The NASA and the Jet Propulsion Laboratory offer you to create your own planet, orbiting the star of your own choice.
How to create your planet
To become a planet creator, just head toward the Extreme Planet Makeover website. Using the options given at the bottom of the screen, you only have …

Lights of alien worlds

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Since the search for extraterrestrial intelligence started, scientists have been “listening” to stars, looking for artificial radio emissions from other planets. While we keep searching for such signals, there may as well be other ways to detect alien civilizations. Light itself may in the future become an efficient way to …

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