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How Many Earth-Like Planets Are There?

A new study shows there could be as many as six billion in our own galaxy!

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Scientists think the Milky Way galaxy is about 100,000 light-years across and 12 billion years old. With so much space, could other planets like Earth exist? Scientists think there are other planets like ours, but the question is how to find them.

A new study in The Astronomical Journal said could be six billion Earth-like planets in just the Milky Way galaxy. Researchers at the University of British Columbia believe there could be one exoplanet for every five Sun-like stars in our galaxy. An exoplanet is a planet outside our solar system.

Study authors used information from NASA’s Kepler data mission to guess the number of exoplanets in a goldilocks zone. The goldilocks zone is the special place around a sun like ours where a planet could have liquid water and temperatures similar to ours.

2020: The Year of Exoplanets

It has been a good year in the hunt for exoplanets. Scientists – professional and amateur – have made discoveries that could help us find Earth-like planets.

Space exploration is booming thanks to new technologies and a data.

“Know Where to Look”

With all this new information, researchers now “know where to look” in their hunt for alien life. Mineral dust, active volcanoes, and hydrogen atmospheres – there are all kinds of things that experts are looking for in their hunt for discovery. With a huge number of planets in the universe, it could only be a matter of time before we learn of other lifeforms.

Andrew Moran

Economics Correspondent at and Andrew has written extensively on economics, business, and political subjects for the last decade. He also writes about economics at Economic Collapse News and commodities at He is the author of “The War on Cash.” You can learn more at

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