Scientists Spot Light From Behind a Black Hole for the First...

If you know what a black hole is, you're probably aware that it can contain as much mass as billions of stars, compressed into a much smaller space, and have such a powerful gravitational pull that even light can't escape its grasp.But even though it's not possible to see into a black hole, it is…

What Is Your City’s Tree Equity Score?

When talking about urban cities and inequality, we tend to focus our conversations around income and housing. But what about trees? Yes, inequality can also come in the form of tree coverage in your neighborhood. Tree coverage can lead to more time spent outside, improved health due to better air quality, lower overall temperatures, reduced…

Here’s How the Climate Crisis Is Impacting the Water Cycle

Depending on where you live in the world right now, you might be experiencing heavy rains or extreme drought. The current extreme fluctuation in precipitation across the globe is due in large part to climate change.However, the cycle that controls the rain — or lack of rain — is the hydrological cycle, also known as…

Water ‘Witches’ Pit Science Against Folklore in Search of Groundwater

Water witches have been around — and by around, we mean around the world, from Australia and India to Europe and the Americas to many, many other places — for at least five centuries. So just in terms of simple longevity, you have to give it up to the witches. As a profession, that's been…

Why Does Hydrogen Peroxide Come in a Brown Bottle?

What do you get when you combine two molecules of hydrogen and two molecules of oxygen? You get H2O2, more commonly known as hydrogen peroxide. Used in the food, papermaking, textile and electronic industries, among others, peroxide is a great disinfecting and bleaching agent. It is clear and colorless, and when poured over an open…

Why Flash Floods Are So Dangerous

They don't call them "flash" floods for nothing. On July 20, 2021, panicked subway riders in the Chinese city of Zhengzhou pleaded for help as flood waters filled up their subway cars, trapping them inside. Many commuters were swamped up to their necks as they sent texts and cellphone videos out.At least 12 commuters died…

Chernobyl’s Elephant’s Foot Is a Toxic Mass of Corium

Eight months after the April 1986 nuclear accident at the Chernobyl nuclear power plant in Ukraine, workers who entered a corridor beneath the damaged No. 4 reactor discovered a startling phenomenon: black lava that had flowed from the reactor core, as if it had been some sort of human-made volcano. One of the hardened masses…

16 of the Most Famous Architects Who Ever Lived

Frank Lloyd Wright said, "The mother art is architecture. Without an architecture of our own we have no soul of our own civilization." Indeed, buildings are both a practical necessity and an artistic expression of a culture. Architects make civilization not only possible, but also beautiful.We'll explore some of history's most famous architects, (in no…

Fire, Deforestation Have ‘Flipped’ the Amazon to Be Emitter of Carbon

The Amazon has long done its part to balance the global carbon budget, but new evidence suggests the climate scales are tipping in the world's largest rainforest. Now, according to a study published July 14 in Nature, the Amazon is emitting more carbon than it captures.This study is the first to use direct atmospheric measurements,…

Is Space Tourism Worth It?

This month, space launches have grabbed the headlines with a fervor reminiscent of NASA in its glory days of Apollo 11 and the moon landing. But unlike 50-plus years ago when those historic events took place, today's stories focus on an entirely different group of people reaching to the edge of space (and beyond): billionaire…

After 60 Years, Wally Funk, 82, Is Finally Going to Space

Imagine dedicating your entire career to one major goal that others told you was impossible. Now imagine finally achieving that lofty goal at a time in your life when most of those naysayers have quit or retired. Meet Wally Funk, the woman who's living that truth as we speak. At the age of 82, Funk,…

How Human Are Humans? New Study Suggests About 7 Percent

Have you ever looked at an ad for a DNA test and wondered: What were my ancestors like? Who were these people that gave me their genetic code? Perhaps you pictured a group of shepherds, diligently tending their flock. Perhaps you imagined merchants selling spices from elaborate jars, or hunters tracking down a towering elk.Did…