Earth, Planetary habitability

Four planets found orbiting a star 6 light-years from Earth
Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 light-years from Earth.
Earth has new neighbors: Four planets discovered just 6 light years away
Exciting new research suggests there are four miniature planets orbiting Barnard’s Star, each thought to be just 20 to 30% the mass of Earth.
Four Tiny Planets Discovered Near Earth, After Century-Long Search
Astronomers have made an exciting breakthrough by discovering four sub-Earth exoplanets orbiting Barnard’s Star, our closest single-star neighbor. Using the high-precision MAROON-X instrument on the Gemini North telescope,
Astronomers Find Four Sub-Earth Planets Just Six Light-Years Away
Barnard’s Star has fascinated astronomers for decades. At just six light-years away, it is the second-closest single star to our own Sun. Now, two separate research teams have found solid evidence that four tiny planets—each less than half the mass of Earth—circle this nearby star at incredibly close distances.
Astronomers Confirm 4 Rocky Exoplanets in Earth’s Backyard, Just 6 Light-Years Away
The four exoplanets orbit Barnard’s Star so closely that their years last only a few Earth days. They are probably rocky and, given their proximity to the star, uninhabitable. In fact, the 2024 study estimates Barnard b’s surface temperature to be a balmy 257 degrees Fahrenheit (125 degrees Celsius).
Four Mysterious Alien Worlds Discovered Just 6 Light-Years from Earth!
Astronomers have detected four small planets orbiting Barnard’s Star, one of the closest stars to Earth, at just six light-years away. This discovery, published in The Astrophysical Journal Letters, marks a significant step in the search for rocky exoplanets beyond our solar system.
Four small planets discovered around one of the closest stars to Earth – an expert explains what we know
Consequently, even though it is one of the closest stars to Earth, such that its light takes only six years to get here, it is too faint to be seen with the naked eye. Now, four small planets have been found orbiting the star.
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How climate change could make Earth's space junk problem even worse
"Our behavior with greenhouse gases here on Earth over the past 100 years is having an effect on how we operate satellites ...
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Earth: Facts about the Blue Planet
Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust ...
Check Out Stunning Images of the Scientifically Plausible Alien Planet From Ash
If you’re going to set a sci-fi movie on an alien planet, it’s a nice bonus if that planet actually exists. Or, at least, is ...
Four small rocky planets confirmed orbiting nearby Barnard's star
Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...
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March 2025 stargazing: A red moon and a vanishing planet
March’s night sky brings a total lunar eclipse, a rare chance to see Mercury, and shifting planets. Don’t miss these ...