Throughout Earth’s history, the climate has varied greatly. For hundreds of millions of years, the planet had no polar ice caps. Without this ice,…
Most glacier surges, broadly defined as a flow at least 10 and often hundreds of times faster than a glacier's usual pace of advance, are…
With extreme cold-weather gear, scientific instruments, and two tank-like snow machines called PistenBullys, they begin a traverse on Dec. 21 along a section of the…
The ozone layer in Earth's stratosphere absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3). The ozone layer can…
Glaciologist like Kristin Poinar are revealing whats found below the massive, mysterious and melting Greenland ice sheet. Hidden under the ice sheet is a vast…
Earth's magnetic field extends from the Earth's iron interior out into space, where it meets the solar wind, a stream of charged particles emanating from…
What will the next ice age look like with our warmer global climate? Climatologist Gavin Schmidt recaps some past ice ages, and then gives us…
When, after a long day of running around, you finally find the time to relax in your favorite armchair, nothing seems easier than just sitting…
Where Kyle uses pictures to embark on a seven minute quest to befriend a penguin. Seriously, penguins are cool. Kyle Sullivan created this video about…
Is the equinox really when day = night? https://youtu.be/MVDCsXUygEw
Earth's landmasses were not always what they are today. Continents formed as Earth's crustal plates shifted and collided over long periods of time. This video…
Meet Eric Cheng, a photographer and technologist who was most recently the Director of Aerial Imaging for DJI. Eric's work with drones has taken him…
Animation showing the 12-month cycle of all plant life on Earth - whether on land or in the ocean. Rather than showing a specific year,…
The discovery beneath Campi Flegrei, a dormant supervolcano in southern Italy, of a concrete-like rock that is similar to Roman concrete explains why the ground…
Buried just beneath the Earth's surface, beneath roots and soil, is the solid bedrock of Earth's crust. Weathering of bedrock is essential to life on…
Using high-speed cameras, MIT researchers observed that when a raindrop hits a surface, it traps tiny air bubbles at the point of contact. As in…
Early voting starts October 9. Maricopa County Recorder Helen Purcell will tell you everything you need to know to successfully cast your ballot. Arizona State…
TED presents Bill Stone, a maverick cave explorer who has plumbed Earths deepest abysses, discusses his efforts to mine lunar ice for space fuel and…