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Science / Our Planet

The abandoned city of Machu Picchu is one legacy of the Spanish conquest of the Incas. Traces of air pollution in a Peruvian ice cap are another.

Anthropocene

Spanish Conquest of the Incas Caused Air Pollution to Spike

A sample of Peruvian ice has revealed a surge in pollution linked to mining that wasn’t exceeded until the Industrial Revolution

Spire’s Austin Ellis shows off a satellite frame at Spire's San Francisco headquarters. Components, like the weather sensor, stack on top of each other inside the frame. Solar panels and antennae fold out from the frame once the device is in orbit.

New Satellite Network Launching This Year Aims to Improve Weather Forecasting

With a network of compact, low-cost weather satellites with smartphone-like internals, startup Spire plans to make future forecasts a lot more reliable

An aerial view of the New Zealand coast shows marine terraces lifted up by an earthquake.

Scientists Have Imaged the Base of a Tectonic Plate

The discovery of a slippery layer off the coast of New Zealand could help explain plate movement

Faced with the only high-cost options, Smithsonian researcher Whitman Miller began building his own portable, inexpensive monitoring stations.

Saving Money is Great, but Saving the Chesapeake Bay Will Be Even Better

Whitman Miller’s “off the shelf” technology may answer complicated questions about rising CO2 and ocean acidification

A satellite image shows the huge snowstorm that blanketed the northeastern United States this week. The blizzard was an example of how storms are getting less common but more intense.

Anthropocene

Climate Change Is Altering the Global Heat Engine

Thermodynamics help explain why storms will become fewer in number but stronger in intensity as the planet warms

The World Hit “Peak Chicken” in 2006

The popular poultry is just one of many key food resources that hit peak production between 5 and 30 years ago

No snowman is perfect, but a bit of physics know-how can help in the construction process.

Ask Smithsonian

Do You Want To Build a Snowman? Physics Can Help

Here’s what you need to know about the science of constructing your very own Olaf

The western tarsier, a rare primate species, has lost large amounts of its Borneo habitat to logging. More of that habitat is likely to disappear because of climate change.

Borneo’s Mammals Face a Deadly Mix of Logging and Climate Change

But adding small amounts of land to already protected areas could help save the island’s biodiversity

The underside of this recently flipped iceberg is glassy and free of debris.

An Iceberg Flipped Over, and Its Underside Is Breathtaking

On vacation in Antarctica, filmmaker and photographer Alex Cornell captured an unusual sight

The International Space Station Will Soon Be Able to Measure Forest Density Using Lasers

Strengthening the planet’s forests is one critical way to combat climate change

A diverse array of trilobites ruled the seas for almost 300 million years, until they vanished at the end of the Permian period.

Vinegar-Like Acid Rain May Have Fallen During Earth’s Worst Extinction

Vanilla-flavored rocks hint at a planet scoured by intense acid rain during the Great Dying 252 million years ago

The lavish displays of the Gold Souk in Dubai are a long way from deforested areas of South America, but a new study connects the two worlds.

Lust for Gold Is Consuming Precious South American Forests

Satellite images show that while the scale of deforestation is small, it is bleeding into protected areas

This multicolored lily pad is actually a bloom of the iron-based mineral hematite in Brazilian quartz.

Art Meets Science

Surreal Photos Reveal the Otherworldly Insides of Gemstones

If you thought gems were beautiful to the naked eye, take a look at them under a microscope

An Asian tiger mosquito in action.

New Research

Could GM Mosquitoes Pave the Way for a Tropical Virus to Spread?

Modified insects designed to stop dengue fever could make it easier for another disease-carrying species to take root

To reduce carbon dioxide emissions, the world would need to leave some 80 percent of current coal reserves in the ground, according to a new study.

Anthropocene

To Meet Global Warming Targets, Leave Fuels In the Ground

Hefty percentages of fossil fuels need to remain untapped to curtail the rising global temperature

As you pour your Champagne to celebrate the New Year, remember that the physics behind those bubbles has some real-world applications.

The Physics of Champagne Bubbles Could Help Power the Future

Studying the principles that govern bubble formation in sparkling wine could improve power plant boilers

Arachnophobia, coral reefs, artificial cells and strange amphibians starred in some of this year's science finds you might have missed.

Ten Cool Science Stories You May Have Missed in 2014

ICYMI, there’s a newfound coral reef in Iraq, the smallest force has been detected and more in this year’s surprising science

Researchers found that human joint-bone density remained pretty high until recently in our evolutionary history, around the same time that humans began switching from hunting and gathering to farming.

Switching to Farming Made Human Joint Bones Lighter

A more fragile skeleton evolved about 12,000 years ago, probably driven by a shift from hunting to agriculture

Windswept trees seem to loom over a beach on the remote island of Tarawa in Kiribati. Scientists have found that coral reefs near Tarawa record changes in Pacific trade winds.

Corals Show How Pacific Trade Winds Guide Global Temperatures

The world has been in a global warming hiatus, but that will change when the winds once again weaken

Volunteers participate in the 2009 Audubon Christmas Bird Count. Now in its 115th year, Audubon touts the event as the largest and longest-running citizen science project in the world.

Top Three Results From a 115-Year-Old Citizen Science Project

The Audubon Christmas Bird Count is touted as the world’s longest running citizen science project—so what has it taught us?

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