The search for a habitable exoplanet has been a frustrating one. Stellar flares.
Barren poisonous rocks lashed with deadly stellar flares.
And it all has happened.
And it all has to do with oceans.
"Life in Earth's."
"Geophysicist Stephanie Olson of the University of Chicago."
"Life in Earth's oceans depends on how it works (upward flow) What are the conditions we need to know? look for on exoplanets. "
Olson and her team uses software called ROCKE-3D developed by NASA's Goddard Institute for Space Studies to model rocky exoplanets. They modeled a range of different exoplanets to explore which would be the most likely to develop and sustain life, based on ocean circulation.
They found that the larger atmospheres combined with slower rotation rates and the presence of continents all produced higher upwelling rates.
"This is a recent conclusion," Olson said.
"It shows that on some exoplanets with favorable ocean circulation patterns it has become more abundant or more active than life on Earth. "
We know that there are likely out there, beyond the solar system. In addition to Earth, we know Mars was once better watery, for instance. And there are the moons, too ̵
These nearby worlds do not meet the criteria laid out by the research, though , Mars is dry and has a thin whisper of atmosphere, and the moons have barely-there atmospheres as well; we are so currently in the state of their continental status.
But there are a lot more exoplanets out there in the galaxy than there are moons in the solar system. Last year, scientists released an estimate of 35 percent of all known exoplanets larger than Earth.
So far, the first criterion in the search for habitable exoplanets has been a planet in the "habitable
This parameter will not be used in the future
"In our search for life in the Universe, we should target the subset of habitable planets that will be most favorable to large, globally active biospheres," Olson said, "because those are the planets where life wants." be easiest to detect – and where non-detections will be most meaningful. "
The research was presented at the Goldschmidt Geochemistry Congress in Barcelona.