Space
Tiny dwarf galaxy might house a supermassive black hole
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Bio
Jonathan O'Callaghan is a freelance science journalist based in London. He specialises in stories on astronomy, astrophysics and space exploration, and was awarded the Walter Sullivan Award for Excellence in Science Journalism by the American Geophysical Union in 2021.
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Space
Habitable planets could have formed at the dawn of the universe
News
Space
The physicist on a mission to understand Mercury's epic solar storms
Features
Space
Keeping space tidy should become a global UN goal, say researchers
News
Space
Earth had a temporary mini-moon that was a chunk of the real moon
News
Space
Life on Mars could be surviving in an area deep underground
News
Space
Exploding interstellar space rocks could explain mystery radio flashes
News
Space
Planet 10 times the size of Earth is one of the youngest ever found
News
Space
Twin spacecraft will launch to create an artificial solar eclipse
News
Space
Distant dwarf planet Makemake might have a surprising ice volcano
News
Space
Astronauts could hitch a ride on asteroids to get to Venus or Mars
News
Space
A supernova may have cleaned up our solar system
News
