Earth & Environment

The rise of fish began with a mass extinction, fossils reveal

About 445 million years ago, life on Earth nearly collapsed. In a relatively short geological moment, Earth’s climate flipped dramatically. Massive glaciers spread across the...

Whale hunting in south America began 5,000 years ago—far earlier than we thought

The history of whale hunting is much older—and more global—than researchers once believed. A new study shows that Indigenous communities living along the southern coast...

How a 400-year-old shark keeps its vision sharp for life

In a quiet office at the University of California, Irvine, Dorota Skowronska-Krawczyk watches a grainy video on her computer. A massive Greenland shark drifts slowly...

This system reveals how super-Earths are born

One of the best things about being able to see thousands of exoplanetary systems is that we’re able to track them in different stages...

Why the Los Angeles fires were so destructive

Twelve months after devastating wildfires tore through parts of Los Angeles, researchers are still uncovering lessons from one of the most destructive urban fire...

Your receipt could soon be made from trees, not toxic chemicals

Every day, most of us touch thermal paper without giving it a second thought. It shows up as shopping receipts, delivery labels, movie tickets, and...

Walking on two legs began earlier than we thought

Scientists may have just pushed back the timeline for when our ancestors first started walking upright. A new study suggests that Sahelanthropus tchadensis, a species...

The sticky problem of lunar dust gets a mathematical solution

Apollo astronauts discovered an unexpected enemy on the Moon. Fine dust, kicked up by their movements and attracted by static electricity, coated everything. It found...

How air pollution may raise depression risk in older people

Air pollution is often talked about as a threat to our lungs and hearts, but scientists are now finding that it can also affect...

How a 4,000-year-old sheep solved a long-standing plague mystery

The Black Death is one of the most infamous pandemics in human history, killing roughly a third of Europe’s population during the Middle Ages. That...

Tattoos, toxins and the immune system – what you need to know before you...

From minimalist wrist designs to full sleeves, body art has become so common that it barely raises an eyebrow. But while the personal meaning of...

When humans disappeared, these birds evolved different beaks

When the COVID-19 pandemic shut down the UCLA campus, students weren’t the only ones affected. A small brown bird called the dark-eyed junco also felt...

FEATURED

New way to measure flying baseballs

As the Major League Baseball season gets underway, a burning question for many fans of the third most popular sport in the United States...

Warren Buffett: How I do market valuation in investment

According to Investopedia, the market value represents the value of a company according to the stock market. It is the price an asset would get...

Scientists create new air filter that can kill COVID-19 virus instantly

In a new study, researchers have designed a "catch and kill" air filter that can trap the virus responsible for COVID-19, killing it instantly. They...

Five scary myths about sugar this Halloween – by a nutritionist

Walk through any supermarket at this time of year and you’ll see shelves stacked with Halloween treats. Halloween and candy go hand in hand...

Northrup Grumman is studying how to build a railway on the moon

Roughly two years and six months from now, as part of NASA’s Artemis III mission, astronauts will set foot on the lunar surface for...

Why the sun’s corona is hotter than its surface

The solar corona, or the outer atmosphere of the sun, has puzzled scientists for decades. Despite being farther from the sun's core, the corona...

Assyriologist unravels mystery of 2,700-year-old temple

In the ancient city of Dūr-Šarrukīn, which we now call Khorsabad in Iraq, there's a puzzle that's baffled experts for over a century. On the...

Your dog might be hiding its true colors

If you have a purebred dog, it’s likely that he or she looks fairly similar to other dogs of the same breed, especially when...