Execution, integrity, and provenance determine PDF safety.

Unfortunately, hail and sleet are far from the only falling objects that may come crashing down on you—you may need to watch out for the growing problem of plummeting space junk. As the number of ...

This has never been observed before. For the first time in history, scientists are watching an alien comet fall apart. The object comes from beyond our Solar System and has traveled for billions of ...

A RO-ALERT message was sent on Tuesday morning to residents in the northern area of Tulcea County, informing them of the possibility that objects might fall from the airspace, in the context of the ...

Add Yahoo as a preferred source to see more of our stories on Google. How black holes stretch, crush, and swallow matter. (CREDIT: AI-generated image / The Brighter Side of News) Centuries before ...

Centuries before anyone pointed a telescope at the sky, Isaac Newton figured out how gravity works. He showed that any object with mass pulls on every other object—a result that explained falling ...

Force equals mass times acceleration! Dr. Rob and the Crew put Newton's Second Law of Motion to the test with scooters, carts, bowling balls, and even a marshmallow catapult. From tug of war to ...

ST. LOUIS — At least nine drivers say their cars were damaged after rocks or other heavy objects struck them while traveling on Interstate 44 near the Jamieson Avenue overpass early Monday. St. Louis ...

Below is an excerpt from Mark Twain's "Roughing It" recalling the afternoon of July 4, 1863 in Virginia City. This passage was first published in 1872. Late one summer afternoon we had a rain shower.

A woman captured a video of an unidentified object falling from the sky in Pembroke Wednesday night. Colleen McCormack said she was sitting by her hot tub around 9 p.m. when she saw a strangely shaped ...

DENVER, Colorado (KCNC) — Police in Colorado are investigating reports of objects falling or being thrown onto cars. Westminster police say in the early hours of Saturday morning, two different ...