A cybernetic laboratory consisting of supercomputers made it possible to create new worlds

Avi Blizovsky

Earth's biological signature includes methane, water and ozone. If these materials are discovered on a distant planet, life is probably the cause. On the right - a virtual Earth-like planet

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Biologists, astronomers and computer scientists work together on supercomputers to create planets from scratch and explore the variety of physical bodies that can serve as a home for life.
The ingredients for the new worlds will be thoroughly mixed in a virtual laboratory managed by NASA where it will be possible to examine the chances of a special satellite whose task will be to locate Earth-like planets around other planets and find ones that bear life. Through the simulation of a variety of planets, the scientists at the Jet Propulsion Laboratory (JPL) hope of NASA in Pasadena, California, to narrow the search for life-bearing planets.
"We're trying to build a terrestrial planet inside a computer," says Vikki Meadows, the lead scientist in charge of the Virtual Planets Lab project. "This will help us distinguish what the signatures of life on a planet outside the solar system are, and what they will look like when we have the technology to examine them," she says.
During the next few years, Midavs and dozens of her colleagues will try to combine the forces of several supercomputers to create a cybernetic world and conduct simulations of the atmospheric conditions of those planets. The data from the cybernetic world will be replaced by real data when NASA launches the next generation space telescopes, including the 'terrestrial planet finder'.
This month, NASA appointed scientists and engineers to a working group that will formulate the technology that will be used in the finder of terrestrial planets, and which the agency hopes to launch within about a decade.

Frozen worlds, burning worlds

Astronomers hope that the terrestrial planet finder will be so powerful that it will be able to locate the planets themselves and not just the influence of their orbits on the parent star. Decomposing the light coming from a distant planet into its spectral components will make it possible to obtain essential information about the chemistry of the planet, perhaps even to find out whether they can be a home for life.
What will be the biological signature of those planets? There is only one example today - the Earth. NASA scientists believe that they can expand this possibility by collecting data from planets close to us such as Venus and Mars, which exhibit different sizes, different compositions, different orbits and different temperatures. "We will make models that simulate everything - from a frozen hell to a boiling hell," Meadows said.
Until now, astronomers have been able to detect the presence of planets only through indirect means such as when they periodically dim their parent star or their gravity has an effect on the parent star.
Over a hundred planets have so far been discovered around other stars and they are limited, at least by our search method, to gas giants, distant cousins ​​to Jupiter and Saturn. The new systems will attempt to overcome these technological limitations and locate Earth-sized planets.

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