Mars Express, one of the longest-running planetary probes ever made, was only intended to last for about two Earth years, but it's still going at 17! And it's taught us an unbelievable amount, including everything from studying its...

Volcanoes, climate change, and Chinese history may seem like three phrases spit out of a random word generator, but the three things are more inherently linked than one may assume.

In today's news, Michael Aranda stands in for Hank to talk about this year's flu season. <br/>
And no, Hank isn't out sick with the flu - he's on the road and out of the studio for a few weeks!

When astronomers study the universe, they’re often using telescopes that cost millions or even billions of dollars to build. Luckily for the rest of us, there are still plenty of incredible things to see in the sky with the more...

Planetary scientist Joel Levine shows some intriguing -- and puzzling -- new discoveries about Mars: craters full of ice, traces of ancient oceans, and compelling hints at the presence, sometime in the past, of life. He makes the case...

Most rocky planets have pretty consistent surface features, with a fairly even mix of mountains and basins in each hemisphere. This is NOT the case on Mars! What do scientists know about this mystery?

Thanks to the James Webb Space Telescope (JWST) and Space Telescope Science Institute for supporting this video.



This video is about the cycloid curves on Jupiter's moon Europa - they're ridges or valleys...

For 13 years, the Cassini probe circled Saturn and sent back fascinating data about the seasons of Saturn as it moved through a 29 Earth year Saturnian year.

We've learned a lot about Mars over the years, but we keep uncovering new mysteries - important, fundamental aspects of The Red Planet that we just can't explain. Here are three of them.

During the age of dinosaurs, a massive asteroid slammed into the Earth, bringing an end to most life at the time. And thanks to new fossil evidence, we've been able to pinpoint a time of year for this event that happened millions of...

Time stamps:

0:00 - Fake sphere
proof
1:39 - Fake pi
= 4 proof
5:16 - Fake proof that all triangle
s are isosceles
9:54 - Sphere
"proof" explanation
15:09 - p
i = 4 "proof" explanation
16:57 - Triangle "proof"...

Two proofs for the surface area of a sphere

Summer, Fall, Winter, Spring. Every new season brings new...diseases.

Mr. Andersen explains how carbon-14 dating can be used to date ancient material. The half-life of radioactive carbon into nitrogen is also discussed.

Nina Jablonski says that differing skin colors are simply our bodies' adaptation to varied climates and levels of UV exposure. Charles Darwin disagreed with this theory, but she explains, that's because he did not have access to NASA.

It’s wintertime in the Northern Hemisphere, which means cold weather, shorter days, and… new relationships? It’s known as cuffing season, and there are actual psychological reasons you may be more inclined to settle down with a romantic...

Each year, we try to fight flu season with the influenza vaccine and this year is no different. But why is there a flu season at all and how do we fight it?

Does your toilet water drain differently than in the other hemisphere? Is it because of the Coriolis effect? Hank has some things to clarify about these questions, and more in this edition of I Don't Think It Means What You Think It Means.

If you live in the Northern Hemisphere, it's almost time for the summer solstice, the longest day of the year! But if all days have 24 hours, what does the 'longest day of the year' really mean? Join Jessi and Squeaks to find out!

Ever wonder why we have seasons? A lot of people think it's because the Earth gets further away from the sun in winter, and closer in the summer. But, it's actually more interesting than that. In this episode of Crash Course Kids,...

Ever wonder why the earth has different seasons? Michael Aranda will explain in this episode of SciShow Quick Questions.

In this video Paul Andersen explains how the atmosphere surrounds the planet. The state of the atmosphere is climate and is affected by unequal heating, the Coriolis Effect, and the ocean. Convection cells and ENSO are discussed in...

Let's say you're looking for a specific constellation in the sky, but can't find it? That could be because you're on the wrong part of the planet to see it. In this episode of Crash Course Kids, Sabrina talks about how the Earth's...

An inside out planetary nebula has given astronomers insight into what might happen in our own solar system someday, and it's that time of year again to search for shooting stars.