Topic: rock

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The Great Pyramid of Giza was bright white & highly polished

Egypt's Great Pyramid of Giza used to look very different from the way it does now. When it was first completed around 2560–2540 BC, the pyramid's original external walls of Tura limestone casing stones were sanded sm...

The Grand Prismatic Spring: One of Nature’s Most Amazing Sights

Yellowstone National Park's Grand Prismatic Spring may be the nation's largest hot spring, but it's primarily known for its vibrant rainbow of colors. Created by the unique bacteria and algae that live within each hue...

The Brain Scoop: In Search of Fossil Fish

Go fishing for 52-million year old fish with Emily Graslie of The Brain Scoop. In this episode, she's In Search of Fossil Fish with The Field Museum at Wyoming's Fossil Lake, an early Eocene treasure trove of fossiliz...

Fossil hunting in unexplored dinosaur country

This is what it's like to be a paleontologist out in the field, from waking at dawn's first light, to digging in the rocks, to wrapping or jacketing finds, to gathering around the campfire, exhausted and covered with ...

Watch 11-year-old rock climbing prodigy Brooke Raboutou climb

It's no wonder that 11-year-old Brooke Raboutou loves to rock climb: Her parents are two former world champion climbers who own a rock climbing gym in Boulder, Colorado, and from very young, climbing has been a huge p...

Google Glass in the Gobi: Dinosaur Nest

Aki Watanabe demonstrates the careful process of extracting and jacketing a nest of dinosaur eggs in the Gobi Desert. A graduate student at the AMNH’s Richard Gilder Graduate School, ...

A “musicless” version of The Hardest Button to Button

When you take the music out of this Michel Gondry-directed music video for The White Stripes, it looks a bit like a Sesame Street video from the 1970s. This is a “musicless” versio...

Gary Greenberg’s microscope photography

This short promo video for artist Gary Greenberg's microscope photography is a great introduction to exploring the tiny, ancient rocks that we call sand. Check out how diverse their details...

How can we know anything about distant exoplanets?

How can we know the size, composition, and atmospheric makeup of distant exoplanets? NASA explains the details in this Alien Atmospheres video.  By observing periodic variations in the pare...

Siats: The newly-discovered mega-predatory dinosaur

Meet Siats (pronounced SEE-otts) Meekerorum, the first giant mega-predator to be discovered in North America — specifically in the Utah desert — in over 60 years. In this Untamed Science video, we ...

A diver makes underwater vortex rings that can knock over rocks

And here I thought this was just an animated gif, but no, via Daily Picks & Flicks, there’s a video of a diver making a bubble ring or vortex ring, above. A vortex ring is the phenomenon where a quantity...

Antarctica: An animated map of the bedrock beneath

What is beneath the world’s largest ice sheet? Compiled by the British Antarctic Survey and made from “millions of new measurements, including substantial data sets from NASA’s ICESat satellite and ...

Night Wanderers: Asteroid 2012 DA 14 passing Earth (February 2013)

Night Wanderers, captured by space and time-lapse enthusiast Colin Legg. As you may have heard, the asteroid 2012 DA14 silently glided past Earth on Friday, Feb. 15, 2013. Observations us...

Caribbean hermit crab mass migration, U.S. Virgin Islands

Photographer Steve Simonsen films an epic Caribbean hermit crab mass migration at Nanny Point, St. John, in the U.S. Virgin Islands. This video has gone viral, and it’s pretty clear as to why! How many thousands...

How the Mariana Trench was formed

From the History Channel's "How The Earth was Made" S01 E02, this is how the Mariana Trench was formed. From Wikipedia: The Mariana Trench is the deepest part of the world’s oceans, and ...

Landscapes: Volume Two

Landscapes: Volume Two — the second of three, with notes here — features stunning images of Arizona and Utah, including time lapse skies filled with stars. Via @brainpicker.