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100 ghost galaxies may be orbiting the Milky Way—and we’re just now uncovering them
New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...
One of the Best Meteor Showers of 2025 Is About to Begin—and It Can Be Seen Across the U.S.
One of the best shooting star displays of the year is coming to a sky near you. The annual Perseid meteor shower is visible ...
The key piece of evidence that shows interstellar object is really an alien spacecraft
Mysterious interstellar object is caught on camera Earlier this month, astronomers spotted a bizarre interstellar object hurtling through the solar system.Dubbed 3I/ATLAS, this 12 miles (20km) long ...