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Whales and dolphins live ‘human-like’ lives

They work together, talk to each other and use tools. A new study links the complexity of Cetacean culture and behavior to the size of their brains.

What are gravitational waves?

If you understand how a trampoline works, you’ll be able to understand what gravitational waves are.

Gravitational waves, and more, from merging neutron stars

On Monday, LIGO and Virgo announced the 1st detection of gravitational waves produced by colliding neutron stars, and 1st observed in both gravitational waves and light. “It ushers in a new era in astronomy.”

Egg-shaped Haumea has a ring

Dwarf planet Haumea – which orbits our sun in Pluto’s realm of the solar system – has become the first trans-Neptunian object known to be encircled by a ring.

Chasing the northern lights in Alberta

A night sky timelapse by Jack Fusco featuring frozen lakes, fog inversions, and of course the northern lights!

Secret Antarctic ice canyons revealed

Ice shelves in Antarctica are like conveyor belts, continually carrying ice to the sea. Scientists have found hidden canyons on their undersides that may affect the shelves fragility.

5 new pairs of merging supermassive black holes

Merging black holes are the sorts of catastrophic events that produce the strongest gravitational waves. Scientists just announced 5 new pairs, in the centers of distant galaxies.

All you need to know: Draconids in 2017

The Draconids are best seen in the evening hours. In 2017, a bright waning gibbous moon will interfere, but still … give it a try!

Moon and planet-rise, seen from space

This timelapse video shows a peaceful and breathless moonrise from the International Space Station, with Venus, Mars and Mercury also in view.

New Horizons’ discoveries keep coming

New ScienceCast video on recent results from New Horizons spacecraft data. Landslides on Charon. Possible snow on Pluto. Plus a preview of New Horizons’ next target.

How fast is our universe expanding?

Here’s a great New ScienceCast video about the controversial Hubble Constant. It’s the key to knowing the age of our universe and much more.

Zap! Biologist measures electric eel’s shock on his own arm

Talk about dedication to science! This biologist stuck his arm into an eel tank – 10 times – to get an accurate measure of an eel’s shock. He said it felt “like touching a horse fence.”

Aging star blows off smoky bubble

A strikingly beautiful view of a delicate bubble of expelled material around the exotic red star U Antliae helps astronomers understand how stars evolve during the later stages of their life-cycles.

More Cassini legacy: Titan’s bonkers atmosphere

Cassini’s legacy will endure. Click for a video about the atmosphere of Saturn’s large moon Titan, which might resemble that of an early Earth.

Another X-flare from the sun

We’re near solar minimum, but the sun has been active! Click here for a video of solar flares so far in September, 2017 and for news for the sun’s most recent X-flare.

X-ray astronomy and planet-hosting stars

X-ray astronomers explored how quickly young stars settle down after blasting the space around themselves – including any possible planets – with energetic radiation.

Asteroid 3122 Florence: Video and images

This large asteroid swept closest to Earth on September 1. It’s big enough that astronomers are still catching it in small telescopes, as a small, slow-moving “star.”

Mystery of high-energy cosmic rays

Hold out your hand for 10 seconds. A dozen electrons and muons just zipped through your palm. These cosmic rays, scientists believe, come from violent explosions in deep space.

Space station transits sun during eclipse

There was only one part of Earth where you could catch the International Space Station crossing the sun’s face during the August 21 solar eclipse. These guys saw it, and created this video.

The hunt for asteroids

New short video from NASA about the hunt for potentially hazardous asteroids and comets, and ways to defend Earth against them.