SciShow Space

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2019
2019x1
3 of the Most Peculiar Supernovas
Episode overview
Massive stars die in fantastic explosions called supernovas. Most of them fit neatly into a few categories, but then there are the peculiars, a special group of supernovas that don’t quite fit in with the rest.
2019x2
Future Space News of 2019
Episode overview
2019 will be a big year for the moon! Not only is it the 50th anniversary of the first moon landing, but our closest neighbor is receiving a bunch of new visitors this year.
2019x3
Are There Planets More Habitable Than Earth?
Episode overview
Earth probably isn’t the best place in the universe. It turns out there might be even better places to live that are even more suitable for life: superhabitable planets.
2019x4
We Just Landed on the Far Side of the Moon for the First Time!
Episode overview
The new year is off to a great start for space exploration! New Horizons has passed the farthest object ever visited by a spacecraft, and China put a lander on the dark side of the Moon!
2019x5
Why Does It Take So Long to Get to Mercury?
Episode overview
On a cosmic scale, Mercury isn’t very far away, but it's incredibly hard to get there. Getting into orbit around it takes years of flybys in the solar system, but we're going to do it again!
2019x6
Our First Glimpse of a Newborn Supernova?
Episode overview
A super bright flash in the sky might be the birth of a supernova remnant and it turns out there's more than one way to build a binary star system.
2019x7
Our Startling First Glimpse of the Far Side of the Moon
Episode overview
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.
2019x8
Giant Stars Don't Follow the Rules
Episode overview
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!
2019x9
The Impossible Element Hiding in the Sun
Episode overview
Not all of the naturally occurring elements were discovered here on Earth. Helium was discovered by examining sunlight, and that same technique is now teaching us about the composition of distant galaxies.
2019x10
The Moon's Birth May Have Given Earth Ingredients for Life
Episode overview
The event that gave us our moon may have also given us the elements necessary for life and scientists might have found a very tiny piece of our solar system's past way out in space.
2019x11
The Giant, Amazing Machines NASA Built for the Shuttle
Episode overview
For decades the space shuttle was integral to space exploration. In orbit it helped build the ISS, but on the ground it needed help from other gigantic machines.
2019x12
Dark Energy Could Rip the Universe Apart
Episode overview
There are a few ideas about how the universe will end, but a paper published last week suggests that dark energy might eventually rip everything apart!
2019x13
The Universe Is Expanding... But Not Everywhere
Episode overview
The Universe is expanding which means distant galaxies are only moving farther away from us. So in the farthest future, will our night sky be empty?
2019x14
MU69 is Flat, and No One Knows Why
Episode overview
MU69 seems to be much flatter than we thought and the Gaia space telescope can tell us where galaxies have been and, maybe, where they're going.
2019x15
Has Saturn Had More than One Ring System?
Episode overview
Saturn’s rings might only be around a hundred million years old, billions of years younger than some astronomers have suspected, and they might not be the only rings the planet has ever had.
2019x16
Could We Have Saved the Opportunity Rover?
Episode overview
For more than a decade, Opportunity has been one of our best tools for understanding Mars, but after eight months of listening and hoping, it was officially time to put the rover to bed.
2019x17
Life on an Eyeball Planet? It's Possible
Episode overview
Tidally locked planets could be more common than Earth-like planets! And these "eyeball planets" might even be a promising place to look for unique lifeforms!
2019x18
We Just Shot an Asteroid... for Science!
Episode overview
The Hayabusa2 spacecraft fired a bullet into an asteroid and Neptune officially has 14 moons!
2019x19
How to Catch a Supernova Rerun
Episode overview
On earth a sound echo lets you hear something again. Over great distances, a light echo can let you see something again, specifically an exploding star.
2019x20
We May Have Found Mars's Ancient, Underground Lakes
Episode overview
Researchers think a planet-wide groundwater system may have once existed on Mars, and SpaceX launched the very first commercial crew capsule which docked on the International Space Station!
2019x21
3 Solar Systems Scientists Still Don't Understand
Episode overview
From gigantic planets too close to their stars, to those in unfathomably wide orbits, astronomers have discovered seemingly impossible solar systems that shouldn’t exist at all. But they do.
2019x22
Israel Is Getting Ready for Their First Moon Landing!
Episode overview
The Beresheet lander is on its way to the moon and Jupiter's magnetic field might be affecting Europa's ocean.
2019x23
Could We Actually Detect Life on Other Planets?
Episode overview
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?
2019x24
New Surprises from the Asteroid Bennu
Episode overview
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.
2019x25
The Most Stable Neighborhoods in the Universe
Episode overview
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.
2019x26
Spotted: One of the Fastest Pulsars Ever Seen
Episode overview
Astronomers have found a new celestial object, and it's moving really, really fast!
2019x27
Why Our Solar System Is Weirder Than You'd Think
Episode overview
Research suggests that nearly every star has at least one planet, but we haven't found any other solar systems that look quite like ours.
2019x28
Updates on the Hunt for Dark Matter
Episode overview
The hunt for dark matter is still on, and the candidates for it could be primordial black holes as massive as Earth, or axions, as tiny as the smallest subatomic particles in existence!
2019x29
How We Could Study the First Nanoseconds of the Universe
Episode overview
The oldest light we can see comes from when the universe was less than 400,000 years old, so how can we study those first few moments of history?
2019x30
The Most Metal Planet Fragment Ever
Episode overview
Scientists have discovered a shard of a planet that survived the death of its star and TESS has found the first direct evidence of an exocomet.
2019x31
Why Astronomy Hasn't Really Changed Since the 1900s
Episode overview
The way modern researchers study the sky hasn’t really changed in the last few centuries. For the most part, astronomers still study things by analyzing their light.
2019x32
How to Take a Picture of a Black Hole
Episode overview
For the first time ever we have visual confirmation that black holes actually exist and we got it with a telescope the size of our planet.
2019x33
Maybe Life Doesn't Need Water, After All
Episode overview
Scientists have been searching for alien life by honing in on the existence of liquid water, but we might be overlooking some types of life out there that doesn't need water at all.
2019x34
How Scientists Found the First Type of Molecule in the Universe
Episode overview
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.
2019x35
3 Amazing Objects to Check Out with Your New Telescope
Episode overview
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.
2019x36
Why Physics Can't Totally Explain the Universe's Expansion
Episode overview
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 .. show full overview
2019x37
The Coolest Space Mission You May Have Never Heard Of
Episode overview
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!
2019x38
The Imaginary Future Asteroid That Hit NYC
Episode overview
Last week, an asteroid impact drill was conducted, which demonstrated what might happen if an asteroid hit us within the decade. It didn't go quite as well as we would like.
2019x39
How Long Can Humans Outrun Extinction?
Episode overview
In a few million years, we’re going to have to leave Earth if we want to survive. But how long can we actually outrun extinction before the universe becomes uninhabitable to us?
2019x40
Meet Blue Moon: Blue Origin's Lunar Lander
Episode overview
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!
2019x41
3 Myths About Astronaut Food
Episode overview
Scientists have come up with some really creative ways to keep astronauts well fed in space for days and months at a time. But you should take some stories about space food with a grain of salt.
2019x42
Pluto Might Have a Liquid Water Ocean?!
Episode overview
Pluto might seem like the least likely place to find liquid water, but thanks to New Horizons, we have new information about oceans on the dwarf planet and more from the outer reaches of the solar system!
2019x43
5 Spacecraft That Got a New Lease on Life
Episode overview
When something breaks on a spaceship, there's not an auto-shop it can pull up to, so NASA scientists have to get creative.
2019x44
How Origami Could Change Rocket Designs
Episode overview
Origami is helping to ease our journeys back from space, and astronomers are learning more about coronal mass ejections from a distant star!
2019x45
Space Exploration Isn’t Great for the Earth (But It Could Be)
Episode overview
Building and launching rockets to learn about other worlds hasn't been great for Earth, but environmental engineers are working on changing that legacy.
2019x46
They're Calling It "The Forbidden Planet"
Episode overview
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.
2019x47
3 Ways the Milky Way Will Change During Your Lifetime
Episode overview
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!
2019x48
That Galaxy With No Dark Matter? It's Probably Not Real
Episode overview
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 .. show full overview
2019x49
Why We're Building Underground Telescopes
Episode overview
Obviously most telescopes need to see the sky to do their job, but when you are studying a wave that can pass right through the earth, the best place for your telescope might be underground.
2019x50
NASA Wants to Capture Asteroids…in Bags (And Other New Tech)
Episode overview
NIAC has awarded their first two grant winners for phase III: optical mining and 3D modeling craters, and researchers are further honing in on how to identify faraway habitable planets.
2019x51
How Tech Designed for Space Is Saving Lives on Earth
Episode overview
Space technology gets applied in all sorts of ways down here on Earth, making us more comfortable, healthier, and even saving lives!
2019x52
Say Hello to NASA's Newest Sun Missions
Episode overview
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 .. show full overview
2019x53
This Tank of Water Could Change Physics Forever
Episode overview
No one has ever conclusively seen a proton turn into other, lighter particles, but fifty million liters of water in Japan might change that and our ideas about subatomic particles forever.
2019x54
We're Sending a Drone to Saturn's Moon Titan!
Episode overview
NASA is sending a robot to Saturn’s giant moon Titan and instead of landing, orbiting, or driving when it gets there, this mission will fly.
2019x55
How We Discovered the Milky Way's Black Hole
Episode overview
The search began with a physicist checking for sources of static on phone calls in the 1930s, but it took several decades to finally make one of the biggest discoveries in astronomy, Sagittarius A*.
2019x56
Meet the Sea Dragon: The Biggest Rocket Ever Designed
Episode overview
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!
2019x57
Here's What It Took to Put Humans on the Moon
Episode overview
2019 marks the 50th anniversary of the Apollo 11 lunar landing and we're doing something big. On Wednesday, July 17th, SciShow is launching its first-ever documentary episode!
2019x58
This Image Might Show Exomoons Forming!
Episode overview
Scientists have conclusively imaged a circumplanetary disk around a distant exoplanet, and Jupiter's auroras claim the spotlight with their unique Birkeland currents.
2019x59
The Biggest Moon Discoveries of the Last Decade
Episode overview
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.
2019x60
The Secrets to Living on Mars: Wine and Aerogel?
Episode overview
One day we might be able to live on Mars thanks to red wine, and domes made out of a very strange material, but don't pack your suitcase just yet.
2019x61
How Cosmic Rays and Balloons Started Particle Physics
Episode overview
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.
2019x62
Three New Exoplanets Close to Home
Episode overview
TESS found 3 new exoplanets around a strangely calm m-dwarf star, and it's possible they could be habitable!
2019x63
3 Bizarre Projects That Could Transform Exploration | NIAC 2019
Episode overview
Every amazing mission you know about today started off as just an idea, and some of 2019’s early phase NIAC concepts could mean big things for our future.
2019x64
This Hot Jupiter Is Leaking Metal!
Episode overview
Astronomers have found a Hot Jupiter - WASP-121b - that is leaking metal, and put together a new 3D map of the Milky Way showing that our galaxy is actually a bit twisted!
2019x65
Cruithne, the Asteroid With a Horseshoe Orbit
Episode overview
There’s a small asteroid that appears to orbit Earth in a horseshoe shape. Sometimes referred to as Earth’s second moon, but it's orbit is much weirder than that.
2019x66
Dark Matter May Have Come Before the Big Bang?!
Episode overview
A new study provides mathematical evidence that dark matter could be much older than we thought and we've found a weird glitch in a neutron star.
2019x67
This Reaction Could Let Us Live on Mars
Episode overview
There is a chemical reaction discovered a century ago that could be the key to creating everything from fuel to shelter on Mars!
2019x68
A Baby Planet May Have Once Smashed Into Jupiter
Episode overview
Shortly after Jupiter formed, it might have been struck by an object that may have otherwise become its own planet! And researchers have a new estimate of how many Earth-like planets might exist.
2019x69
The Electric Thruster That Could Send Humans to Mars
Episode overview
To get humans on Mars we're going to need some innovative tech that can move lots of things at high speed. Luckily, we might already have something that can do the job.
2019x70
Neutron Star, Meet Black Hole
Episode overview
Scientists have observed a collision of two of the universe's most extreme objects. And a mission to Jupiter's moon Europa makes an important step forward.
2019x71
Why Solar Eclipses Create Those Crescent-Shaped Lights
Episode overview
Everyone is watching the sky during a solar eclipse, but but if you look down, you'll catch another kind of light show.
2019x72
The James Webb Space Telescope Is Assembled! Finally!
Episode overview
We have some good news this week for all the James Webb fans out there, as well as a look a some creative chemistry that may help us find the first solid evidence of an exomoon!
2019x73
Why Venus Is THE WORST
Episode overview
Venus was once thought to have been very earth-like and pleasant, but now it's considered a harsh wasteland that we wouldn't even send a robot to.
2019x74
What Happened to India's Moon Lander?
Episode overview
This week, scientists try to figure out what went wrong with India's moon lander, and what went right with a newly discovered, naturally occurring mineral.
2019x75
3 Weird Meteorites (Whose Weirdness Was Instructive)
Episode overview
Meteorites are extraterrestrial rocks that have ended up on earth. All of them are literally 'out of this world,' but here are three of the strangest of these aliens.
2019x76
We Found Water on a Habitable Zone Exoplanet
Episode overview
Researchers found water in the atmosphere of an exoplanet about 110 light-years away, and there's another rock from interstellar space flying through our solar system!
2019x77
How Wiretapping Helped Transform Astronomy
Episode overview
Early telegraph operators and WWI spies picked up some weird noises on radio waves. As it turned out, they were actually listening to plasma waves in Earth’s magnetic field lines!
2019x78
Did This Ancient Asteroid Cause an Ice Age?
Episode overview
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 .. show full overview
2019x79
The Future of CubeSat Propulsion
Episode overview
CubeSats have a lot of advantages, but they need a way to move and still stay small, and that means new miniaturized propulsion systems that can help us get these tiny spacecraft out into the universe.
2019x80
Planet 9 Could Be a Black Hole?!
Episode overview
Two scientists have proposed that Planet Nine could actually be a black hole, and a handful of telescopes observed a distant black hole absolutely destroying a star!
2019x81
3 Ridiculously Extreme Black Holes
Episode overview
Black holes are some of the most extreme astronomical objects out there, but there are some that really standout. Let's look at black holes that grow larger, consume more, and spin faster than the rest.
2019x82
The Milky Way's Black Hole Burped 3.5 Million Years Ago
Episode overview
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.
2019x83
Brown Dwarfs: Space's Strangely Important Oddballs
Episode overview
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 .. show full overview
2019x84
Using Galaxy Clusters to Look Into the Past
Episode overview
Gravitational lensing has given us a look at a galaxy in the very, very distant cosmic past using x-ray light, and NASA finally got its ICON mission off the ground!
2019x85
What's Stopping the James Webb Space Telescope?
Episode overview
The James Webb Space Telescope is the most complex telescope we’ve ever sent into space. But, Webb is not, in fact, in space… yet.
2019x86
The Surprising Secrets of Destroyed Exoplanets
Episode overview
Scientists are learning new things by looking at the remains of exoplanets, NASA has unveiled a new spacesuit design, and engineers fixed a problem from one hundred million kilometers away.
2019x87
This Amazing Mission Almost Failed After Launch
Episode overview
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.
2019x88
The Solar System Might Have a New Dwarf Planet!
Episode overview
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 .. show full overview
2019x89
What to Do With All This Space Poo
Episode overview
There are so many things we can do with poo! Waste is the enemy in matters of space exploration, but there are plenty of ways to use that waste to help make a mission successful.
2019x90
Voyager 2’s Notes from Interstellar Space
Episode overview
Voyager 2 is the second object to leave our solar system, which means we now have twice as much information about its edges! And scientists have found a record-breaking black hole.
2019x91
Other Worlds on Earth: Preparing for Space from Home
Episode overview
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 .. show full overview
2019x92
We've Never Seen a Pulsar Explode Like This
Episode overview
Spacebit is sending crawling, jumping, mini-robots to the moon, and researchers have witnessed a pulsar emit a very cool combination of traits in its most recent flare.
2019x93
Where Do the Biggest Galaxies Come From?
Episode overview
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.
2019x94
Something Is Creating and Removing Oxygen on Mars
Episode overview
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.
2019x95
This Star Just Won't Stop Exploding!
Episode overview
M31N 2008-12a is a rare phenomenon called a recurrent nova, and it may hold the key to understanding the lives and cataclysmic deaths of massive stars.
2019x96
3 Ways to Slingshot a Star
Episode overview
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.
2019x97
Planets Could Form Around Black Holes!
Episode overview
Scientists have discovered a black hole that could possibly everything we know about black holes, and also, evidence that planets, yes planets, could form around super massive black holes.
2019x98
The Invisible Gas That Gave Us Galaxies
Episode overview
More than half of all the matter in the universe is out in the dark, "empty space." Although it's basically invisible, the intergalactic medium has a lot to tell us about the stuff we can see.
2019x99
First Results from the Probe That Went to the Sun
Episode overview
Scientists have revealed the results of the Parker Solar Probe’s first two flybys of the Sun, and LIGO has a new instrument called the quantum vacuum squeezer!
2019x100
How Two Dead Stars Sparked a New Field of Astronomy
Episode overview
Pulsars are more than just cool blinking lights shining across the universe. The discovery of the first binary pulsar paved the way for gravitational wave astronomy astronomy today.
2019x101
New Discoveries from Our Second Interstellar Visitor
Episode overview
This year, scientists have had a chance to study something pretty mind-boggling: a comet that came from outside of our solar system.
2019x102
The Brightest, Biggest Space News of 2019
Episode overview
This has been another really good year for exploring the universe. This is our annual superlatives episode, so let’s take a look at the some of the coolest breakthroughs of 2019.
2019x103
How Long Will the Voyager Spacecraft Last?
Episode overview
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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