To identify the planet’s most lightweight, low-density objects, 24/7 Wall St. considered first the lightest objects of their type.

“If the object has a liquid central core, then a captured PBH can absorb the liquid core, whose density is higher than the density of the outer solid layer,” Stojkovic explains.

New evidence suggests we’re living inside a giant void - The findings could explain one of the most puzzling and enduring problems in cosmology ...

Are we living in a cosmic void? New theory suggests our galaxy sits in a giant hole warping the universe's expansion.

“The resulting acceleration on the object depends on the so-called area-to-mass ratio, which is greater for small and light, low-density objects.” ...

For a low-density object like Earth, the electromagnetic force is enough to do it. The atoms that we have are made of nuclei and electrons, and the electron shells push against each other.

A team of international researchers, including two Northern Arizona University geologists, reports evidence that a comet or low-density object barreling toward Earth exploded in the upper ...

It’s hard to get x-ray images of low-density materials, such as the tissues between bones, because x-rays just pass through like sunlight through a window. But what if you need to see areas that ...