SciShow
Carl Sagan
Hank pays tribute to Carl Sagan, noting his accomplishment as an astronomer and his contributions to culture -- both pop and otherwise -- as one of the great popularizers of science. Happy Carl Sagan Day!
SciShow
Blazars Are A Thing
Hank explains how quasars and blazars are both the same thing - just oriented differently in respect to us - and how that impacts the way we perceive them and how it also effects the ways we can study them.
SciShow
On This Planet, the Floor Is Actually Lava | SciShow News
We have new insights into the bizarre nature of lava planets, and the icy moon Europa may yet reveal some of her salty secrets.
SciShow
We’re Talking To Aliens
We’ve done a lot of searching for life in the universe and we need to continue to if we hope to make contact. But not all of our attempts were expected to succeed. That’s where Beacon in the Galaxy comes in.
SciShow
How Saturn's Moons Could Help Us Live in Space
As we continue our search for life out in the universe, it's important that we leave no stone, or moon, unturned.
SciShow
Why Isn't "Zero G" the Same as "Zero Gravity"?
This Quick Question explains the difference between gravity and g-force, and how you can experience zero-g in space even when it’s not zero gravity!
TED Talks
Juna Kollmeier: The most detailed map of galaxies, black holes and stars ever made
Humans have been studying the stars for thousands of years, but astrophysicist Juna Kollmeier is on a special mission: creating the most detailed 3-D maps of the universe ever made. Journey across the cosmos as she shares her team's work...
SciShow
Forecasting the Weather...on the Sun
The sun is beginning a new weather cycle, causing debate among scientists about how intense things are going to get, and elsewhere, scientists are looking into just how fluid our early universe was.
SciShow
The First Flight in Another Sky
What’s happening with the helicopter on Mars? We have an update on Ingenuity’s progress. Meanwhile, Curiosity’s camera are helping geologists find clues to the mysteries of Martian water!
SciShow
Two Decades Later, We Know Why the Sun Is a Lava Lamp
In 1999, scientists discovered something that took over 20 years to solve. Why do solar flares move like a lava lamp?
SciShow
That’s Not a Black Hole, It’s a Vampire
What was once thought to be a black hole might in fact be a star that feeds on its own kind!
SciShow
We Found Evidence of a Brand-New Particle | Space News
X-rays leaking from dead stars could breathe new life into a hypothetical particle theory, plus an ancient Titanic force may have helped twist Saturn’s axis.
SciShow
Why This Galaxy Gets TWO Black Holes
There’s a massive black hole next door that appears far too big for its host galaxy! And in another galaxy, TWO supermassive black holes formed, giving us a glimpse at a true rarity in astronomy!
PBS
Should We Colonize Venus Instead of Mars?
Mars One. The Mars Rover. Bruno Mars. Mars Bars. It's pretty clear we're OBSESSED with the idea of Mars, especially in regard to it being a potential colony for earthlings. But is that really the best option? Is there a better place for...
SciShow
The Most Anticipated Space Missions of 2022 | SciShow News
2022 is looking like a great year for space exploration! Let's dig into three of the missions that we're really excited to watch unfold!
SciShow
The History Hidden in Martian Dunes
The Red Planet was once more like Earth, with a thicker atmosphere and liquid water. Now, scientists are looking for clues to its past in the planet’s ancient fossil dunes, barchan dunes, and ghost dunes.
SciShow
Mystery Solved: We Finally Know Why Betelgeuse Suddenly Faded | SciShow News
Our neighboring star Betelgeuse got noticeably dimmer a few months ago, and thanks to the Hubble telescope, we recently figured out what was going on. Also, the Arecibo Observatory in Puerto Rico suffered some damage this week.
SciShow
Why These Two Planets SHOULD Be the Same
You'd think that two planets with similar stats, orbits, and parent stars would grow up to be pretty similar, but these twins have atmospheres that beg to differ.
SciShow
Pioneer 10: Our First View into Outer Planets
In the 1970's, no vehicle had gone beyond the asteroids between Mars and Jupiter, that is until Pioneer 10.
SciShow
Could Squirrels Be the Key to Long Distance Spaceflight?
Space is hard on the human body, but a certain ground squirrel might have the guts to show us how to last longer in space.
Crash Course
The Medieval Islamicate World: Crash Course History of Science
The religion of Islam significantly influenced knowledge-making in the greater Mediterranean and western Asian world. Islamicate scholars—meaning people influenced by Islamic civilization, regardless of their religious views—gave us...
Crash Course
High Mass Stars
Massive stars fuse heavier elements in their cores than lower mass stars. This leads to the creation of heavier elements up to iron. Iron robs critical energy from the core, causing it to collapse. The shock wave, together with a huge...
TED Talks
George Smoot: The design of the universe
At Serious Play 2008, astrophysicist George Smoot shows stunning new images from deep-space surveys, and prods us to ponder how the cosmos -- with its giant webs of dark matter and mysterious gaping voids -- got built this way.
SciShow
3 Things You Didn't Know About Voyager
Hank tells us three things we probably didn't know about the Voyager 1 spacecraft.