24/7 Wall St. has compiled a list of the world’s heaviest objects based on information from sources such as the Guinness World Records, the National Institute of Standards and Technology (NIST ...

Called LARES, this tiny — but remarkably heavy — satellite both looks and acts like a disco ball. By bouncing lasers off its reflectors, Italian ...

Built from solid tungsten, this Thor’s hammer isn’t just for show—it’s one of the densest objects ever created in a workshop. A real-world test of strength, weight, and unliftable engineering.

This created the densest object on the planet for a brief moment in time. If my wife had made the above statement , I’d be forced to concede that, yes, at the time this was the densest material on the ...

"And it ends up being one of the densest objects in the sky we have discovered so far," Vo said. The research is detailed in the July 20 edition of The Astrophysical Journal Letters.

Neutron stars are some of the weirdest cosmic objects, and the greatest mysteries lie deep in their hearts. Neutron stars are the leftover cores of exploded stars and the densest known material in ...

Astronomers have measured what they believe is the most massive neutron star ever seen, and it's "almost too massive to exist." Neutron stars are what remains when a star goes supernova and dies ...

In fact, objects in space can orbit a black hole just as they would orbit a star. “We’re not going to get sucked into the sun because we’re in orbit around it,” Trefil explains.