Researchers may have solved Professor Stephen Hawking’s famous black hole paradox—a mystery that has puzzled scientists for almost half a century.

According to two new studies, something called “quantum hair” is the answer to the problem.

In the first paper, published in the journal Physical Review Letters, researchers demonstrated that black holes are more complex than originally thought and have gravitational fields that hold information about how they were formed.

The researchers showed that matter collapsing into a black hole leaves a mark in its gravitational field—an imprint referred to as a “quantum hair.”

In a follow-up paper, published in a separate journal, Physics Letters B, Professor Xavier Calmet from the University of Sussex’s Sch...

Wireless sensors can monitor how temperature, humidity or other environmental conditions vary across large swaths of land, such as farms or forests.

These tools could provide unique insights for a variety of applications, including digital agriculture and monitoring climate change. One problem, however, is that it is currently time-consuming and expensive to physically place hundreds of sensors across a large area.

Inspired by how dandelions use the wind to distribute their seeds, a University of Washington team has developed a tiny sensor-carrying device that can be blown by the wind as it tumbles toward the ground...

In Mars’ northern hemisphere, springtime has arrived, and observations from the HiRISE (High Resolution Imaging Experiment) onboard the Mars Reconnaissance Orbiter has captured partially defrosted dunes on the western slope of dunes inside Kaiser Crater.

In the winter, the dark sand dunes are covered in a blanket of white seasonal ice, which you can see in the image below. But this image actually shows the beginning of Martian springtime, where the sunny side of the dunes had just begun to thaw. The lead image shows even further thawing, with the darker dunes showing through.

“Bright patches of frost (white in enhanced color) are clearly visible and are made up of water and carbon dioxide ices,” w...