Not exact matches
In addition to our solar system's eight near - and - dear planets, there are more than 800 so -
called exoplanets known to circle stars beyond our sun.
Astronomers currently
know of roughly 200 planets circling nearby stars, and more and more of these so -
called exoplanets are discovered every year.
«The question whether so -
called exoplanets are habitable or not is difficult to answer, as we do not
know all the necessary conditions a planet has to fulfill in order to be habitable,» said Yann Alibert of the Center for Space and Habitability (CSH) at the University of Bern.
NESSI will focus on about 100
exoplanets, ranging from massive versions of Earth,
called super-Earths, to scorching gas giants
known as «hot Jupiters.»
Needless to say, all this talk of «Earth - sized» worlds (and the much - hyped «Earth - like» misnomer) has added fuel to the extraterrestrial life question: If there's a preponderance of small
exoplanets - some of which orbit within the «sweet - spot» of the habitable zones of their parent stars - could life as we
know it (or Earth - Brand ™ Life as I like to
call it) also be thriving there?
Before this discovery, NASA had identified 12
exoplanets that are within the so -
called Goldilocks zone, the orbital area around a star that could potentially support life as we
know it.
It also lets us
know how common
exoplanets are in the habitable regions around stars, where the temperatures are not too hot and not too cold, where liquid water can exist, and complex molecules may have figured out the processes we
call life.