Earth, Planetary habitability

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,
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 found orbiting one of Earth's nearest stars in 'incredible' discovery
Barnard's Star is the second-nearest star system to Earth, and four tiny planets have been discovered around it
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).
Discovery about Earth's rivers could help us find water on other planets
“This distinction sets up a great natural experiment for us to see if the shape, or size, of bends in rivers is distinct from those in volcanic or ice channels,” said Tim Goudge, a co-author on the study and an assistant professor at the Jackson School of Geosciences, Department of Earth and Planetary Sciences.
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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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 - ...
After 100 Years of Searching, Astronomers Confirm Four Planets at Barnard’s Star
Astronomers have discovered not one, but four tiny planets orbiting Barnard’s Star, our cosmic neighbor. These planets, each ...
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'Primordial' helium from the birth of the solar system may be stuck in Earth's core
The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long ...