When searching for signs of life on planets outside our solar system, nothing is sometimes good like something. Even the lack of biusies on the external planets that have been examined still can tell us a lot about the possibility of life on billions of planets that we have not yet reviewed, according to Ticket in Astronomical magazine.
The study used an advanced statistical analysis to determine the minimum number of external planets that need to be noticed to generate useful answers about the number of planets that could be possible. They decided that finding any signs of life on 40 to 80 external planets would not actually be excluded that this life exists. Instead, such an answer will slightly reduce the possibility.
Searching for life on external planets
This may mean that less than 10 percent to 20 percent of similar planets in the Milky Way can support life. Initiation out, 10 percent, when applied to the entire universe, still equals about 10 billion of planets that are likely to be inhabited – therefore, not something.
However, there is hunting: uncertainty. Each note contains a certain level of the unknown. Are things measured in the right way? Have the researchers interpreted the data correctly? Was there anything that researchers ignored?
Such questions are more than just philosophical, the authors argue. They can determine the number of resources allocated to a specific area.
“It is not only the number of planets we notice – they are related to asking the correct questions and how confidence in our vision or not seeing what we are looking for,” Daniel AngelhausenViazai said in Eth Zurich and author of a paper, in a press release. “If we are not keen and we are very confident in our ability to determine life, then a major survey may lead to misleading results.”
These questions will be asked how tasks are like international The scale of the great overlap of external planets (life) The task led by Ehth Zurich will be conducted. Life aims to analyze dozens of external planets that resemble Earth in terms of mass and half of the diameter and temperature. The task will search for signs of water and oxygen as well as other chemical components that indicate the possibility of life at least.
Read more: 6 external planets in our world that can support life unlike the Earth
Treating uncertainty for the next tasks
As a result of statistical analysis, research must change the questions it asks in the upcoming tasks, according to the press statement.
“To treat the uncertain sample, for example, the authors indicate that specific and measurable questions such as,” which part of the rocky planets in the area suitable for the solar system shows clear signs of water vapor, oxygen, and methane? “It is the best of the most mysterious,” How many planets are life? “
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Before joining Discover, Paul Smaglik spent more than 20 years as a scientific journalist, specialized in American life sciences and international scientific job issues. He started his career in newspapers, but he turned into scientific journals. His work appeared in publications, including news of science, science, nature and scientific America.