Lights of alien worlds

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 …

Habitability within our Galaxy – Could complex life exist elsewhere?

A team of researchers has presented a new model of habitability within the Milky Way. According to their calculations, more than one in every hundred stars may have planets capable of supporting complex life within our Galaxy. Their results will be published in the journal Astrobiology.
Astronomers generally focus on exoplanets orbiting stars …

Liquid water on Enceladus?

Enceladus, one of Saturn’s moons, is covered with water ice. Could there be a liquid ocean beneath the icy crust? As announced at a meeting of NASA’s Enceladus Focus Group at the SETI Institute in Mountain View, California, there seems to be more and more evidence supporting that idea.
In 2005, …

First habitable alien world?

It looks like the planetary system around the red dwarf Gliese 581 is not done yet with habitable worlds… The system has already been thought to be the first one harboring a habitable planet, in vain. But once again, it might turn out to be the case. With two candidates …

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