WEST LAFAYETTE, Ind. — A dumbbell-shaped nanoparticle powered just by the force and torque of light has become the world's fastest-spinning object. Scientists at Purdue University created the object, ...

Astronomers have discovered an object in our solar system that is larger than Pluto. They are calling it the 10th planet, but already that claim is contested. The new world's size is not at issue. But ...

An unidentified object was shot down 10 miles off the frozen coast of Alaska on Friday afternoon, US officials announced, but details about the object are scarce. US military pilots sent up to examine ...

1I/'Oumuamua was a small object that came from interstellar space and passed close to the sun as it traveled through the inner solar system in the autumn of 2017. It was notable because it was the ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar system by more than 3 billion years, researchers say. The "water ice-rich" ...

A US F-16 fighter jet shot down another airborne object over Lake Huron on Sunday afternoon at the direction of President Joe Biden, the Pentagon said. Pentagon press secretary Brig. Gen. Pat Ryder ...

NASA's Hubble Space Telescope and an ESA orbiter bound for Jupiter both recently glimpsed 3I/ATLAS. The comet will make its closest approach to Earth in December but poses no threat and is not visible ...

The U.S. and Canada are investigating three unidentified flying objects shot down over North America in the past three days. Militaries have adjusted radars to try to spot more incursions. By Julian E ...

Dark matter is an enigmatic form of matter not expected to emit light, yet it is essential to understanding how the rich tapestry of stars and galaxies we see in the night sky evolved. As a ...

A mysterious interstellar object is currently hurtling through our solar system after travelling for billions of years through the vast expanse of space. The object, dubbed 3I/ATLAS, was spotted by ...