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One Pluto year equals 248 Earth years. At 1473 miles in diameter—about half the width of the United States—Pluto is the ...

The UK Space Agency has announced plans to lead the development of a specific instrument for NASA's Habitable Worlds ...

This week, an old astronomical controversy is renewed as researchers present new evidence for a hidden "Planet X" in our ...

NASA engineers have successfully completed testing on one half of the Nancy Grace Roman Space Telescope — a key step in making sure this future observatory will perform as expected once it reaches ...

After two decades of debate, research confirms that an odd binary star system has an equally odd planetary companion ...

NASA’s astrobiology ambitions are at risk of collapsing under the White House’s proposed budget. But your voice can make a ...

Multiple space agencies will send missions to the moon this decade and the next, with plans to establish infrastructure that ...

NASA's Chandra X-ray Observatory regularly images our home ... in the May 2024 issue of the Monthly Notices of the Royal Astronomical Society.

Exoplanets—planets that orbit stars beyond our solar system—have transformed our understanding of the universe. Since the ...

Additional sweeping cuts planned for the National Science Foundation would be similarly ruinous for ground-based astronomy ... NASA’s next great eye in space, the Habitable Worlds Observatory ...