Researchers have proposed a theoretical timepiece, dubbed the "CRASH Clock," which tells us how quickly satellites would start colliding if they lost the ability to avoid each other, such as during a powerful solar storm. And its value is rapidly decreasing.

In its preliminary data release, taken from just seven nights of observations, the powerful Vera C. Rubin Observatory has discovered an enormous, fast-spinning asteroid that sets a new record.

The federal government has released new dietary guidelines, introducing an emphasis on consuming meat and dairy and avoiding highly processed foods.

Archaeologists have announced their discovery of a metal hoard that contained an extremely rare example of a Celtic battle trumpet.

Five quartz arrowheads found in a South African cave were laced with a slow-acting tumbleweed poison that would have tired prey during long hunts.

In a first, scientists have extracted DNA from a Renaissance-era drawing attributed to Leonardo da Vinci, but they can't be sure that the genetic material belongs to the Italian polymath.