The first time scientists found exoplanets, they were orbiting something very different from our sun: a pulsar.<br/>

The first American astronaut to orbit Earth, John Glenn passed away yesterday in Ohio. But he leaves an admirable legacy.

Hank sets the record straight for us, discussing a rain of spiders in Brazil (!?), a new virus that has the internet all a-twitter, and another asteroid recently found to have hit the Earth (not the one in Siberia!) - are...

Earlier this month, a Chinese moon rover discovered a mysterious glittery substance at the bottom of a lunar crater. How did it get there? Also, Comet NEOWISE takes thousands of years to circle the Sun, and right now we can see it in our...

With acidic puddles, lava lakes, and one of the most important early hominid discoveries, the Danakil Depression is home to all of the extremes.

Hank sets the record straight on some of the findings of NASA's GRACE mission and how they relate to predictions about sea level rise and climate change.

Scientists first saw patches of ice on Mercury 20 years ago, and that discovery raised a lot of questions: How could ice survive on one of the solar system’s hottest planets, and how did it get there in the first place?

Life makes our planet an incredibly exotic place compared to the rest of the known universe, says astrobiologist Betül Kaçar, whose research uses statistics and mathematical models to simulate ancient environments and gather insights...

Invasion of the Yellow Crazy Ants!

Hank clarifies, corrects, and generally straightens out the origins of the terrific heat inside the Earth. It's not only from the collisions and pressure that date back to Earth's formation, it also involves the transport of heavier...

There’s nothing boring about Bennu! From its chemistry, size, shape, and spin to its extremely old age, it proves that even the smallest objects in the solar system have a bizarre and fascinating history.

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...

Tabby's star is at it again. Could it be aliens this time!? Also, astronomers have discovered a planet with the density of styrofoam!

The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you.

A look at the science behind pigeons.

Aliens! Could humans really be alone in this expansive universe? And if we're not, how come we've never made contact with other intelligent life? Everyone's thought about it; especially members of the scientific community. Join Gabe as...

Okay, going to Mars is going to be expensive. Not only that, but who we choose to pick on that trip also needs to have the statistically lowest chance of perishing. So it might be the case that our best scenario is all female crew!

Jay Walker, curator of the Library of Human Imagination, conducts a surprising show-and-tell session highlighting a few of the intriguing artifacts that backdropped the 2008 TED stage.

How did earth get the ingredients for life? A new discovery from Comet 67P might hold some answers. And learn where to find Mars in the night sky from 75 million kilometers away.

If you look closely enough, you'll see the night sky is actually a little green. SciShow Space explains the science behind the phenomenon known as airglow.

Meet one of the newest celestial bodies to be discovered: rogue planets, worlds that hurtle around the galaxy without any parent star. Caitlin Hofmeister explains how we found them, and where we think they might have come from.

SciShow Space shares the latest news from the around the universe, including the first supernova observed in real time, and Internet service on the moon. Finally!

Caitlin serves up the latest in space-science news, this week featuring developments in missions dedicated to sampling asteroids, detecting exomoons, and solving the mysteries of the moon.

The Boomerang Nebula is colder than space! And it's not really shaped like a boomerang!