First Aired: April 1st, 2014
Status: Continuing
Network: YouTube
Summary: Every Tuesday and Friday, SciShow Space explores the universe a few minutes at a time.
Hosts Hank Green, Caitlin Hofmeister, and Reid Reimers share everything from just after the beginning of time to the most recent breaking news in space exploration.
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Season 2019
Episode 7: Our Startling First Glimpse of the Far Side of the Moon
Air Date: January 23rd, 2019
Summary: Since the moon is tidally locked to the Earth, for millennia we could only guess what mysteries lay on its "dark side." Then in 1959 the Luna 3 spacecraft sent back a photo that prompted more questions than it answered.
Episode 8: Giant Stars Don't Follow the Rules
Air Date: January 26th, 2019
Summary: Astronomers are learning just how big early stars might have been, and how their deaths have shaped the universe. Some may have even been so massive that they skipped the whole star phase and collapsed straight into black holes!
Episode 23: Could We Actually Detect Life on Other Planets?
Air Date: March 20th, 2019
Summary: There’s probably life somewhere besides Earth, but all the exoplanets are so far away we may never see their surfaces in detail or intercept a clear radio signal from them. How do we determine if a distant planet has life?
Episode 25: The Most Stable Neighborhoods in the Universe
Air Date: March 27th, 2019
Summary: No planet’s trip around a star is exactly like the one before it, because solar systems aren't as static as they first appear. Even small nudges can add up to disaster, but some objects find safe orbits with the help of a partner or two.
Episode 34: How Scientists Found the First Type of Molecule in the Universe
Air Date: April 27th, 2019
Summary: Around a quarter of a million years after the Big Bang, the very first molecule, helium hydride was formed. Now scientists have confirmed that molecule is still being made, and they found it with some help from a high flying airplane.
Episode 35: 3 Amazing Objects to Check Out with Your New Telescope
Air Date: May 1st, 2019
Summary: 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 affordable models.
Episode 36: Why Physics Can't Totally Explain the Universe's Expansion
Air Date: May 4th, 2019
Summary: Astronomers have gotten pretty good at calculating how fast the universe is expanding, but new measurements don’t line up with the predictions of well-tested laws of physics. Now scientists have a new question to ponder - Why are these numbers so different?
Episode 37: The Coolest Space Mission You May Have Never Heard Of
Air Date: May 8th, 2019
Summary: Some space missions get a lot of attention, but not all the biggest space exploration stories get the recognition they deserve. This is the story of a robotic craft that captured the first-ever glimpse of a comet’s icy core!
Episode 40: Meet Blue Moon - Blue Origin's Lunar Lander
Air Date: May 18th, 2019
Summary: Blue Origin announced a a new lunar lander, Blue Moon, that will be delivering supplies, and eventually astronauts to the lunar surface within the next 5 years, and robots like Chang’e-4 are giving us an early glimpse at what we might find there!
Episode 46: They're Calling It "The Forbidden Planet"
Air Date: June 8th, 2019
Summary: We’ve discovered a planet that, for its size, is in a very strange place around it’s star! And other scientists, inspired by comets, have come up with a new way to potentially make breathable oxygen for people exploring Mars in the future.
Episode 47: 3 Ways the Milky Way Will Change During Your Lifetime
Air Date: June 12nd, 2019
Summary: It’s easy to imagine that our galaxy is basically frozen in time from the perspective of a human lifespan, but in fact, the Milky Way is incredibly dynamic and will undergo some pretty amazing changes in only a few decades!
Episode 48: That Galaxy With No Dark Matter? It's Probably Not Real
Air Date: June 15th, 2019
Summary: A little over a year ago, we covered a mind-blowing discovery on SciShow Space News. Some researchers even suggested that, if this was confirmed, it would be one of the biggest astronomy findings in years. Except, as it turns out… that discovery was probably wrong.
Episode 52: Say Hello to NASA's Newest Sun Missions
Air Date: June 29th, 2019
Summary: Our star continuously throws out streams of charged particles at more than 500 kilometers per second, something we call Solar Wind. And just like regular weather can be unpredictable and dangerous, space weather can be, too. Meanwhile, on the other side of the solar system, researchers have also been investigating a certain planet’s rings, and it's probably not the planet you're thinking of.
Episode 59: The Biggest Moon Discoveries of the Last Decade
Air Date: July 24th, 2019
Summary: NASA’s Lunar Reconnaissance Orbiter has been teaching us about the moon for a decade now, and it's still going! What we’re learning from it will make space exploration and future moon missions much easier for future astronauts.
Episode 78: Did This Ancient Asteroid Cause an Ice Age?
Air Date: September 28th, 2019
Summary: Around 500 Million years ago, Earth’s climate was warm, and the planet had nearly no ice, even at the poles. Then an asteroid broke apart deep in our solar system, and our planet plunged into an ice age at the same time. Are the two events related? Also, will future Mars residents farm bugs for food?
Episode 82: The Milky Way's Black Hole Burped 3.5 Million Years Ago
Air Date: October 12nd, 2019
Summary: The black hole at the center of the Milky Way is quiet now, but new evidence suggests that it woke up around 3.5 million years ago. And Enceladus may have the the building blocks of the building blocks of life.
Episode 83: Brown Dwarfs - Space's Strangely Important Oddballs
Air Date: October 16th, 2019
Summary: You’d think it would be easy to tell if an object in space was a star or a planet - is it big, hot, and shining? It’s a star! Small, cool, and made of rock and gas? Planet! But cosmic oddities know as brown dwarfs remind us that the universe is more complicated and interesting than that.
Episode 87: This Amazing Mission Almost Failed After Launch
Air Date: October 30th, 2019
Summary: The ESA Hipparcos team worked for 20 years on the project, then had to watch as the mission ALMOST failed! But somehow, they turned it around, and today, this little-known mission has totally transformed what we know about space.
Episode 88: The Solar System Might Have a New Dwarf Planet!
Air Date: November 2nd, 2019
Summary: After observing what we thought was just a big asteroid in the asteroid belt, a team of astronomers now thinks this might qualify as a dwarf planet. And scientists had the chance to directly observe the collision of two neutron stars for the first time.
Episode 91: Other Worlds on Earth - Preparing for Space from Home
Air Date: November 13rd, 2019
Summary: Other worlds don't seem very welcoming to us Earthlings, and it can be hard to practice our off-world explorations from millions of kilometers away. But Earth also has its fair share of hostile places that we can use to prepare for those unfriendly environments.
Episode 93: Where Do the Biggest Galaxies Come From?
Air Date: November 20th, 2019
Summary: Submillimeter galaxies are ancient, dense, massive galaxies with up to 10 times the number of stars in the Milky Way, and for a long time, scientists couldn’t even figure out how they existed in the first place.
Episode 94: Something Is Creating and Removing Oxygen on Mars
Air Date: November 23rd, 2019
Summary: Oxygen levels in the Martian atmosphere are mysteriously inconsistent, and scientists don’t have a clear explanation for what’s behind the changes. Meanwhile, scientists DO have explanations for the tiger-like stripes on one of Saturn’s moons.
Episode 96: 3 Ways to Slingshot a Star
Air Date: December 4th, 2019
Summary: The star-mapping satellite Gaia has found more than 20 stars speeding across the Milky Way toward intergalactic space. There are just a few things that can slingshot a star out of a galaxy and all of them take some extreme gravitational interactions.
Episode 103: How Long Will the Voyager Spacecraft Last?
Air Date: January 1st, 2020
Summary: For more than 40 years, the Voyager probes have traveled through space sending back all kinds of fascinating data. But these probes were never meant to send us data forever - so how much longer will these amazing probes last?
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