Home / Science / Astronomy / Scientists predict Earth-like planets around most stars

Scientists predict Earth-like planets around most stars

Earth-like planets

Planetary scientists have calculated that there are hundreds of billions of Earth-like planets in our galaxy which might support life.
Credit: NASA/JPL-Caltech/Ames

Scientists predict Earth-like planets around most stars

Planetary scientists have calculated that there are hundreds of billions of Earth-like planets in our galaxy which might support life.

The new research, led by PhD student Tim Bovaird and Associate Professor Charley Lineweaver from The Australian National University (ANU), made the finding by applying a 200-year-old idea to the thousands of exo-planets discovered by the Kepler space telescope.
They found the standard star has about two planets in the so-called Goldilocks zone, the distance from the star where liquid water, crucial for life, can exist.
“The ingredients for life are plentiful, and we now know that habitable environments are plentiful,” said Associate Professor Lineweaver, from the ANU Research School of Astronomy and Astrophysics and the Research School of Earth Sciences.
“However, the universe is not teeming with aliens with human-like intelligence that can build radio telescopes and space ships. Otherwise we would have seen or heard from them.
“It could be that there is some other bottleneck for the emergence of life that we haven’t worked out yet. Or intelligent civilisations evolve, but then self-destruct.”
The Kepler space telescope is biased towards seeing planets very close to their stars, that are too hot for liquid water, but the team extrapolated from Kepler’s results using the theory that was used to predict the existence of Uranus.
“We used the Titius-Bode relation and Kepler data to predict the positions of planets that Kepler is unable to see,” Associate Professor Lineweaver said.
Story Source:
The above story is based on materials provided by Australian National University.

Down

About Mohammad Daeizadeh

  • تمامی فایل ها قبل از قرار گیری در سایت تست شده اند.لطفا در صورت بروز هرگونه مشکل از طریق نظرات مارا مطلع سازید.
  • پسورد تمامی فایل های موجود در سایت www.parsseh.com می باشد.(تمامی حروف را می بایست کوچک وارد کنید)

Leave a Reply

Your email address will not be published. Required fields are marked *

*


*