Sharks are incredibly unlikely to bite you. They're even less likely to kill you. However, we remain fascinated with their ability--and occasional proclivity--to do just that. With so many things more likely to harm us, why do we pay such rapt attention when sharks make headlines?

NASA has a bug problem. While cars on long road trips might suffer from bug guts on the windshield, bugs also splatter on aircraft wings during flight. This can interrupt the flow of air over the wings, increasing drag and making the flight less efficient.

Our beloved Moon, often the staple of a peaceful and tranquil nighttime scene, has a pretty violent origin story. In 1970, researchers proposed the “giant impact” hypothesis, which reasons that the Moon is the result of a huge collision between the Earth and another planetary body some 4.5 billion years ago.

Innumerable children have gone through the same devastating ordeal time and time again: buy a goldfish, only to have it die shortly thereafter. But it turns out that a few goldfish in Colorado may have been a bit hardier than their owners thought.

This past February, the United Kingdom became the first country to legalize mitochondrial replacement therapy (MRT), also known as mitochondrial DNA replacement, which can be used to make “three-parent babies.” Proponents of MRT point out that the therapy can mean that mothers with mitochondrial diseases, such as muscular dystrophy and various types of organ failure, won't pass those diseases along to their children. Others argue that MRT creates a slippery slope towards the fraught “designer babies,” or are concerned that destroying embryos is unethical.

Instead of tilting at windmills, how about living in one? The Dutch Windwheel is a giant proposed wind turbine for the city of Rotterdam in the Netherlands, which will feature apartments and hotel rooms along the outside of the structure.

For people with a healthy immune system, cytomegalovirus (CMV) doesn't present much of an issue. It's transmitted through bodily fluids and, though it remains in the body for a person's entire life, the immune system causes the virus to stay dormant. But for people with a weakened immune system, such as people with a transplanted organ, CMV can cause an active infection.

If everything goes as planned, no one will see India's new navy coming. The nation is committed to building a stealthy fleet, and now that vision has come one step closer to reality. The first of India's six Scorpene stealth submarines was undocked yesterday. It will soon begin sea trials and eventually enter naval service.

Intel may power your PCs, your smartphones, and your tablets, but it also wants to power your horde of spider robots. On stage at the company's Intel Developer Forum in Shenzhen China, CEO Brian Krzanich demonstrated the company's Curie module for wearable solutions, and showed how it allowed him to control, via gesture, a quartet of multi-limbed artificial arachnoids.

Brain surgery is notoriously complicated. Before surgeons go in to remove a tumor, they study the size and location of the tumor. But once they're in, they have to rely on their fingers and eyes to distinguish tumor cells from healthy brain cells. Now researchers have developed a "paint" that can be injected into a patient's veins to make tumor cells glow. After a number of successful studies in mice and dogs, the paint is now being tested in humans in California.

There's a while yet before the Apple Watch is actually available to us, Average Joe consumers. But just two days before it descends on Apple stores around the world (and goes up for pre-order), we've been deluged with a host of reviews from tech journalists who have spent the last few weeks with the new smartwatch.

Over 65 million years ago, when a 6-mile wide asteroid slammed into the earth with the force of a billion atomic bombs, it left a crater 110 miles wide.

For decades, infantry's problem with planes has been that they're hard to reach because they're far away. Anti-aircraft weapons must be used to keep bombers and fighters from striking at troops on the ground with impunity. Now, the Marine Corps is finding a challenge with a new sort of airplane: small drones, which fly close to the battlefield, but are hard for traditional anti-air weapons to detect or hit. To counter this threat, the Marines are turning to a new tool: anti-artillery radar.

The first time Popular Science wrote about stilbene, nuclear weapons were decades away from existing. Now, the Department of Homeland Security wants to take advantage of the properties of stilbene crystals and make nuclear detectors out of them.

Having the right amount of body fat can be healthy, but most Americans have too much of it. A team of researchers led by a biologist at the University of California San Francisco has been investigating the cellular composition of this fat in order to engineer fat-burning drugs in the future that might help curb the obesity epidemic. The study was published recently in Nature Medicine.