Category: 7. Science

Earth carries an invisible ocean “water level” called the geoid. If only gravity and rotation shaped the oceans, the surface would match that geoid everywhere. However, south of India, the geoid sinks sharply.

At the center of this sunken…

Spend any time at all looking up at the night sky, and you’re bound to see some unusual lights appear at some point.

As any astronomer will attest, the sources of these inevitably turn out to be entirely mundane – aeroplanes, drones, lights…

On the surface of Mars, there are numerous features that tell of a past age when the planet was warmer and wetter, with rivers, lakes, and even an ocean that covered much of its northern hemisphere. These include river channels, delta…

Human sperm can swim through surprisingly viscous fluids with ease – and they seemingly defy Newton’s third law of motion to do so.

To figure out how they slither through substances that should, in theory, resist their movement, a team led…

Human sperm can swim through surprisingly viscous fluids with ease – and they seemingly defy Newton’s third law of motion to do so.

To figure out how they slither through substances that should, in theory, resist their movement, a team led by…

In Siberian permafrost, scientists thawed ancient soil and saw tiny nematodes move. These animals “woke up” after an extremely long freeze and resumed life functions in the lab.

Their revival raises clear scientific questions and practical…

The Witch Head Nebula, pictured in October 2008, is in the constellation Orion, from which the Orionids get their name. The Orionids will reach their annual peak Monday and Tueday. File Photo courtesy of NASA | License Photo

The night sky will…

What makes shark skin so tough and fast isn’t one thing but millions: dermal denticles, the tiny, tooth-like scales that armor a shark from snout to tail. They’re made of the same hard material as teeth.

Each denticle is etched with grooves…