Planet May Be Habitable; 'Super-Earth,' Discovered That Might Support Human Life
Astronomers made a major discovery of a "super-Earth" that may be habitable.
The alien exoplanet, known in the scientific community as HD 40307g, may reportedly be capable of supporting human life.
Located 42 light-years from Earth, the newly discovered planet may soon be able to be imaged by telescopes. The "super-Earth" is located at the right zone near its' host star, which can have liquid water and possibly a non-deadly atmosphere.
"The longer orbit of the new planet means that its climate and atmosphere may be just right to support life," study co-author Hugh Jones, of the University of Hertfordshire in England, said in a statement. "Just as Goldilocks liked her porridge to be neither too hot nor too cold but just right, this planet or indeed any moons that it has lie in an orbit comparable to Earth, increasing the probability of it being habitable."
The newly-found planet is one of three recently discovered around the host star HD 40307, which already was known to have three planets. This latest discovery brings the total worlds orbiting the star to six.
HD 40307g is the farthest planet from the host star, with an orbiting distance of around 56 million miles away. To compare, the earth orbits around 93 million miles away from the sun. The other planets discovered are likely too hot to be habitable, but HD 40307g remains the primary candidate for life.
It's still unknown what the planet's surface looks like.
When asked if the planet had a surface similar to Earth's, Mikko Tuomi, the study's lead author, said to Space.com, "If I had to guess, I would say 50-50. But the truth at the moment is that we simply do not know whether the planet is a large Earth or a small, warm Neptune without a solid surface."