TED Talks
Martin Rees: Is this our final century?
Speaking as both an astronomer and "a concerned member of the human race," Sir Martin Rees examines our planet and its future from a cosmic perspective. He urges action to prevent dark consequences from our scientific and technological...
TED Talks
Jeremy Kasdin: The flower-shaped starshade that might help us detect Earth-like planets
Astronomers believe that every star in the galaxy has a planet, one fifth of which might harbor life. Only we haven't seen any of them -- yet. Jeremy Kasdin and his team are looking to change that with the design and engineering of an...
SciShow
The Arizona Fireball and Planet Nine's Origins
An asteroid streaked across Arizona's night sky, and we have a new theory on where the hypothetical Planet Nine came from.
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
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
New Clues to the Structure of the Universe
An incredibly bright burst of energy and a dent covered with ice give us insights into planetary and universal structure.
SciShow
What Knocked Over Uranus And Two Other Mysteries?
The most common type of exoplanets might be worlds like our ice giant, Uranus. Understanding it could be key to the history of planets all over the galaxy.
SciShow
This Little-Known Lab Is Changing the Future of Space
To live on the Moon, we’ll need to do things we’ve never done before and overcome challenges we’ve never faced. Luckily for us, NASA is developing some brand-new technology at Swamp Works.
SciShow
3 Mars Mysteries We Really Should Have Solved By Now
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.
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
The JWST Pictures You Haven’t Seen Yet
The James Webb Space Telescope released its first official batch of photos to the public, but they weren't the first images the telescope captured since they had taken a bunch while testing the cameras. Let's talk about some of those...
SciShow
Mining Asteroids for Space Treasure!
In the quest to build colonies in space, one major hurdle to overcome getting materials for construction to the places they'll be needed. One of the most promising techniques for solving this problem involves some extraordinary space...
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
How Cosmic Rays and Balloons Started Particle Physics
Today, cosmic rays are used to understand things like supernovas, but in the early 1900s, they helped us discover brand-new subatomic particles long before the first accelerators.
TED Talks
TED: What time is it on Mars? | Nagin Cox
Nagin Cox is a first-generation Martian. As a spacecraft engineer at NASA's Jet Propulsion Laboratory, Cox works on the team that manages the united States' rovers on Mars. But working a 9-to-5 on another planet -- whose day is 40...
SciShow
A New Comet’s Very, Very Near Miss
This week, a new comet will make its first visit to the inner Solar System, just barely missing Mars (we hope). SciShow Space News takes you there!
SciShow
This New Star Is a Ticking Time Bomb - SciShow News
We might be sitting next to the largest bomb in the galaxy and NASA's InSight lander will touch down on Mars this Monday!
SciShow
Space Guns Don't Work (But We Built One Anyway)
Before we had rockets like the Falcon 9, we had other ideas of how we might shoot for the moon: space guns!
SciShow
How Climate Change Is Creating More Space Junk
You’ve probably heard a lot about how climate change is affecting our planet, but did you know a warming climate also affects objects in space?
SciShow
How Do We Know the Age of the Universe?
What kinds of tools do astronomers use to calculate the age of the universe, and how can they determine the speed of its expansion?
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...
Curated Video
Venus
Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight -- but it’s beauty is best looked at from afar. Even though Mercury is closer to the sun, Venus is the hottest planet in the solar system, due to a runaway...
SciShow
The Hardest Things About Living on Mars
Creating a Mars colony is a dream for many people, but it comes with some unique and challenging problems.