Astronomers have discovered a long-period radio transient with theory-defying properties. It's incredibly polarized, and its spin appears to be speeding up.
Astronomers have found evidence for a newborn planet 440 light-years away, sculpting spiral arms in the disk of gas and dust around its young parent star.
Astronomers using the Gemini North telescope have confirmed a companion for Betelgeuse! It's a blue-white star and orbits within Betelgeuse's outer atmosphere.
Today is the 56th anniversary of humanity's historic Apollo moon landing and the 1st human footsteps on the moon. And it's also International Moon Day.
July 19 is the 12th anniversary of The Day the Earth Smiled, the 3rd-ever image of Earth from the outer solar system, taken by the great Cassini spacecraft.
Cutting-edge gravitational wave detectors have found most massive black hole merger yet. Discoverers say it defies our understanding of how black holes form.