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Video: Paddle boarders meet orcas

Imagine you’re paddle-boarding, and an orca – killer whale – pops up on the ocean surface near you. Two amazing and beautiful videos, here.

Video: First marathon on Mars

On Earth, a fast runner takes a few hours to complete a marathon. On Mars, it’s taken 11 years. NASA’s Opportunity rover crossed that finish line in March, 2015.

A new ScienceCast video follows Opportunity on its marathon trek across Mars.

Shark finning is brutal and sad

Great white, via sharkfacts.com

Great white, via sharkfacts.com

During 2014, three people were fatally attacked by sharks, while 73 million sharks were killed as a result of the finning trade. Click in to see the startling infographic.

If you give an octopus a camera

… she’s going to want to take pictures. An octopus at a New Zealand aquarium trains a camera on visiting tourists.

What is a dwarf planet?

You’ll know in 60 seconds. New Space Shorts video from NASA

Watch octopus squeeze through tiny hole

It’s just cool, that’s all. Watch this 40-second video of an octopus squeezing through a tiny hole to escape a box.

This date in science: Neil Armstrong’s close call

May 6, 1968. More than a year before he became the first human to set foot on the moon, Neil Armstrong had a narrow escape in the Lunar Landing Research Vehicle (LLRV) at Ellington Air Force Base near Houston. The LLRV had been designed to simulate a descent to the moon’s surface, and all the lunar astronauts trained in it. That day, while Armstrong was piloting, a leaking propellant caused a total failure of his flight controls …

Huge salty aquifer found under Antarctica

Researchers supported by the National Science Foundation have gathered evidence for a salty aquifer – liquid salt water, possibly supporting unknown microbial ecosystems – underneath Antarctica’s McMurdo Dry Valleys. They announced their discovery on April 28, 2015 with the video above and with the publication of the work in the open-access journal Nature Communications.

Man sings “If I only had a brain” during MRI

While he sings, watch what’s going on inside his head.

Huge magma reservoir discovered under Yellowstone supervolcano

University of Utah seismologists have discovered a reservoir of hot, partly molten rock 12 to 28 miles beneath the Yellowstone supervolcano that is 4.4 times larger than the shallower, long-known magma chamber. The researchers say the vast reservoir of hot, partly molten rock is enough to fill the Grand Canyon 11 times over.