SciShow
Meet the Sea Dragon: The Biggest Rocket Ever Designed
The 1960s were an optimistic time for space exploration - so much so that a team designed a rocket called the Sea Dragon that was big enough to launch an entire space station from the sea in one go!
SciShow
How To Build A Space Station
Step one is probably having access to billions of dollars, but what about the following steps?
SciShow
From Kepler to Webb: The History of the Telescope
Hank regales us with the history of the telescope, and then introduces us to some folks from the team who are working on the newest telescope in the chronology - the James Webb Space Telescope, an infrared telescope due to launch in 2018.
SciShow
Could There Be Planets Beyond Neptune?
Did you grow up thinking there were nine planets in the solar system? You might have been right all along! Today we discuss the possibility of distant worlds in our solar system.
SciShow
Lunar Impact
Hank tells us about the planned demise of two lunar satellites that have been collecting data for NASA, and have now reached the end of their mission.
SciShow
A Strangely Cool Supermassive Black Hole!
In this week's news we discover that Tatooine has got nothing on HD 131399Ab's wide orbit, and there's a some really cool jets coming out of a supermassive black hole.
Crash Course
Star Clusters
Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held...
SciShow
The Farthest Galaxy We've Ever Seen! | SciShow News
Scientists have spotted a galaxy from the early origins of the universe, and found evidence to support the existence of a 9th planet in our solar system.
Be Smart
The Cosmic Origins of Earth's Water
Why is Earth is a blue planet? Because it's covered in water! Where did Earth's water come from? Of course, water isn't unique to our planet. The origin of water traces beyond the solar system to the earliest days of the universe. Here's...
SciShow
Pluto: Still Not A Planet
The ESA is working on a 'fresh-squeezed' spacecraft that will explore Jupiter's moons, and the New Horizons team makes a case for Pluto (and many others)!
SciShow
Can We Change Earth’s Orbit?
Climate change is a big problem, but could we solve it by giving the earth a little nudge?
Crash Course
Cycles in the Sky
This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe.
MinutePhysics
GPS, Relativity, and Nuclear Detection
GPS is just a big clock in space! (and it can detect nuclear explosions)
SciShow
π 'N' Science
It's pi day! Hank explains why this irrational number is important to scientists, and discusses a bit of a controversy that surrounds it.
Crash Course
Exoplanets
Today Phil explains that YES, there are other planets out there and astonomers have a lot of methods for detecting them. Nearly 2000 have been found so far. The most successful method is using transits, where a planet physically passes...
SciShow
Three New Exoplanets Close to Home
TESS found 3 new exoplanets around a strangely calm m-dwarf star, and it's possible they could be habitable!
SciShow
Why Does Venus Spin Backwards?
We're always learning more about far away galaxies and exoplanets, but we still have some pretty big mysteries hanging out here in the solar system, like why Venus spins the way it does.
SciShow
A New Asteroid Mining Mission!
The future is bright for those of you who want to be asteroid miners! You might soon get your chance!
PBS
The Origin of Our First Interstellar Visitor
We were recently visited by a traveler from outside our solar system. This is the first time we've ever seen an object that came to us from interstellar space. It's name is 'Oumuamua.
MinutePhysics
Why the Solar System Can Exist
If gravity is so attractive, why doesn't the earth just crash into the sun? Or the moon into the earth? The answer: Stable Orbits
SciShow
The Equator Is a Bad Place for These Rocket Launches
Some satellites orbit in the same direction the planet rotates, which means they get a boost for their launch, but most have orbits where that isn’t ideal, and that creates some challenges for engineers.
SciShow Kids
Check Out the Satellites!
You might not know it, but there are thousands of human-made satellites orbiting the Earth! They help us do everything from study the climate to make phone calls, and there are even some satellites that people can live on!
Be Smart
Does The Moon Really Orbit The Earth?
According to Newton's law of gravitation, the sun should "pull" way harder on the moon than the Earth does. So does the moon actually orbit the Earth? Why?
PBS
How Asteroid Mining Will Save Earth
The days of oil may be numbered, but there's another natural resource that's never been touched, Asteroids.