In the early 1960s, Richard Feynman was quoted as saying that Earth's center should be a day or two younger than its surface. 50 years later, scientists re-did the math.

SciShow Space takes you inside solar flares, and how we've managed to get the best look at one yet, along with news about a new, Web-based simulation of the earliest days of the universe that you can explore yourself!

This video is about the orbital mechanics of why it's so hard to crash into the sun - the energy it takes to get there is astoundingly high, compared with leaving the solar system.

From the very large to the very small, the universe is an amazing place. Here's my favorite ways to explore its scale.

This video is about how the way we describe the world can influence the way we perceive it. In particular, with regards to Bohmian mechanics, Schrodinger wave functions, Feynman path integrals, and Galilean moons attached to Jupiter by...

This video is about how Albert Einstein made a mistake when applying the Field Equations of General Relativity to cosmology (in particular, to a static, constant density universe), and solved the problem by introducing the cosmological...

Caitlin Hofmeister gives you the latest news from around the universe, including Kepler's latest exoplanet discovery, an upcoming solar eclipse, and a breathtaking image from Hubble.

It's been a year since astronomer Tabetha Boyaijan found strange signals coming from a star called KIC 8462852, aka Tabby's Star. Now, new research shows that it's even stranger than we thought. Plus, good news from spaceflight company...

This week on SciShow Space News, we’re learning more about the side effects of space travel… from mice. Plus, we explore the most luminous galaxy!

Humans have never visited another planet, but we can send special spacecraft called probes to visit them for us! One of those probes, called Voyager 1, has gone deeper into space than any other, and it's sent us some amazing pictures...

No astronauts were harmed in the making of this video.

Happy Holidays! Ever wonder how Santa could possibly manage to deliver all those presents in a single night? Or what gives red-nosed reindeer the ability to fly? And why do your Christmas lights get tangled in knots no matter how...

In a friendly, high-speed presentation, Will Wright demos his newest game, Spore, which promises to dazzle users even more than his previous masterpieces.

As the world's cities undergo explosive growth, inequality is intensifying. Wealthy neighborhoods and impoverished slums grow side by side, the gap between them widening. In this eye-opening talk, architect Teddy Cruz asks us to rethink...

Hank explains how a recent astronomical discovery made in Antarctica could change what we know about the birth of the universe, and the rules of physics that govern it.

New research suggests that Venus’ patterned crust might currently be more active than we thought! Astrophysicists have also modeled the orbits of mysterious objects between Jupiter and Neptune, and found that they could have come from...

Since November of 2000, there have always been people on board the International Space Station. That’s nearly 20 straight years of humans living in space! But the ISS isn’t just the world’s coolest playground, it’s also a...

This video is about what would happen if we built a giant ring around earth – what would happen to the ring, that is. Would if fall? Collapse? Start spinning? REFERENCES: Why Isn’t It Faster to Fly West? Video...

From problems with the moon, to the lumpiness of earth, sea levels aren't quite as exact as we have them figured out to be.

From mice that battle scorpions to microscopic moss piglets that can survive a solar storm, here are 6 of Earth’s most hardcore beings!

Hank takes on the role of our personal space travel agent, giving us the dirt on the various ways in which the exceptionally wealthy will be able to travel to space in the next few decades.

We’ve got some new evidence for water beneath Jupiter’s Great Red Spot, and a new model of Jupiter’s weird magnetic field.

We’ve sent more spacecraft to Mars than any other planet, but around half of the probes that have ever attempted to explore Mars have either crashed or disappeared.

Ever wonder what seasons are like on other planets? Astronomers are beginning to find out, and SciShow Space explains how they know, what causes the change in seasons, and what 'summer' might mean on distant worlds.