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 2020
Episode 1: Future Space News of 2020
Air Date: January 4th, 2020
Summary: 2020 is going to be an exciting year for space exploration, if everything goes according to plan. Humans are heading to space in new spacecraft, multiple Mars missions are on the horizon, and scientists are getting a new perspective on our Sun!
Episode 5: Get Ready for a New Star in the Night Sky!
Air Date: January 18th, 2020
Summary: Astronomers are predicting that two stars are likely to merge and explode, and it may happen soon... on a cosmic timescale. Plus, scientists break up a meteorite and find the oldest solid matter ever discovered on earth.
Episode 7: There's Apparently an Asteroid Between Mercury and Venus
Air Date: January 25th, 2020
Summary: Astronomers have found the first asteroid orbiting closer to the Sun than Venus, and recently, some scientists have been looking at Earth, trying to understand the origins of our protective magnetic field.
Episode 9: The Legacy of the Spitzer Space Telescope
Air Date: February 1st, 2020
Summary: On January 30, 2020, we had to say goodbye to NASA’s Spitzer Space Telescope after more thank 16 years of revolutionizing infrared astronomy. Today, SciShow sends it off and says thank you by taking a look back at it’s incredible legacy.
Episode 11: Astronomers Captured Our Sun in the Highest Resolution Ever
Air Date: February 8th, 2020
Summary: A new telescope, the DKIST, has given us our most direct look at the Sun ever, in the highest resolution yet. And a paper published last week has revealed how “the dunes” auroras may be more than just a new spectacle in the night sky.
Episode 13: How Pluto's Heart Makes Its Atmosphere Spin Backward
Air Date: February 15th, 2020
Summary: Pluto's heart is revealing itself to be a major influence on the dwarf planet’s landscape and atmosphere, and scientists used atom probe tomography (APT) for the first time on lunar soil to study it atom by atom!
Episode 14: 3 Historic Firsts in Asteroid Exploration
Air Date: February 19th, 2020
Summary: We’ve visited lots of places in our solar system in the last 60 years, but modern technology has made an unlikely candidate the hottest new frontier of solar system exploration - asteroids. Today, we’ll take a look at a few exciting discoveries that marked some asteroid firsts.
Episode 15: Betelgeuse Isn’t Just Dim - It’s Lopsided
Air Date: February 22nd, 2020
Summary: The constellation of Orion has one shoulder marked by a bright red star called Betelgeuse, but over the last year it's dimmed enough to notice with the naked eye! and mission scientists are shedding some light on how Arrokoth and other Kuiper Belt objects may have formed.
Episode 20: How Bad Are Satellite Constellations for Astronomy?
Air Date: March 14th, 2020
Summary: Imagine being excited to use one of the world's most advanced telescopes, only to see bright streaks of light on every picture! This is a problem facing some astronomers as satellites fill up the night sky.
Episode 23: How Earth’s Tides Gave Us Life As We Know It
Air Date: March 25th, 2020
Summary: While astronomers are busy searching for life beyond Earth, they’ve also started asking another question - If life seems so difficult to find, then why is our world so full of it? One answer might be overhead right now - the Moon!
Episode 26: Old Voyager Data Has New Secrets About Uranus
Air Date: April 4th, 2020
Summary: Scientists announced a major discovery about Uranus using 34-year-old data from Voyager 2, and the Canadian telescope CHIME has detected 9 new FRB repeaters, helping us learn more about these mysterious signals.
Episode 28: 3 Times We Captured Physical Pieces of the Sun
Air Date: April 11st, 2020
Summary: It's tricky to study the particles of our Sun because Earth’s magnetic field deflects them, but scientists have found ways to do it! They're helping us understand things like the Sun’s origin, what it's made of, and how it might affect future colonization of the Solar System.
Episode 30: What We’re Learning from the Brightest Supernova Ever Seen
Air Date: April 18th, 2020
Summary: It’s been a great week for space explosions! Astronomers learned more about the mechanism that causes novas by looking at the nova V906 Carinae, and the brightest supernova ever recorded shed some new light on pulsation pair-instability.
Episode 36: Turns Out, the Sun Is... Pretty Chill
Air Date: May 9th, 2020
Summary: Life on Earth depends on the steady nature of our star, and an international team of scientists searched thousands of other stars to try to find out if the sun has always been as consistent as it is now. And According to a study published Monday in Nature Astronomy, scientists searching for habitable exoplanets should maybe be looking in some more exotic places.
Episode 37: How the Movement of Other Planets Affects Earth — Yes, Really
Air Date: May 13rd, 2020
Summary: Scientists have found at least three cycles in nature that can be traced back to the alignment of the planets. And while they won’t tell you anything about your love life or personality, by studying them, we can learn about our planet’s past and future—and even how the solar system has changed.
Episode 39: These Stars Are Being Eaten Alive from the Inside
Air Date: May 20th, 2020
Summary: In general, a star’s size will determine its final destiny. Some stars fizzle out, while others explode, and what seals their fate may come down to a curious, cannibalistic process happening inside their cores!
Episode 40: The Equator Is a Bad Place for These Rocket Launches
Air Date: May 23rd, 2020
Summary: 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.
Episode 41: The Cosmic Lasers That Form in Outer Space
Air Date: May 27th, 2020
Summary: Lasers are incredible narrow beams of light we can use to do everything from cutting metal to operating on people's eyeballs. But even though we came up with the idea on our own, humans didn’t actually make the first lasers.
Episode 42: No, We Didn't Discover a Bizarro Universe
Air Date: May 30th, 2020
Summary: Scientists picked up two unusual signals that seemed to be coming up from the ground instead of down from space. They're still working on understanding why, but despite what you may have heard, they aren't evidence for a parallel universe where time runs backwards.
Episode 44: This Collision Could Have Created the Solar System
Air Date: June 6th, 2020
Summary: A dwarf galaxy crashing through the Milky Way billions of years ago could have set off periods of star formation, and astronomers recently captured a rare flashing phenomenon that only shows up in the sky for a few days!
Episode 45: How to Kill a Galaxy
Air Date: June 10th, 2020
Summary: Our Milky Way galaxy is alive and well, producing new stars all the time. But there’s another group of galaxies out there, populated only by venerable red dwarf stars - the young stars are nowhere to be seen. In effect, these galaxies are... dead. How did they die?
Episode 46: We Still Can't Find the First Stars in the Universe
Air Date: June 13rd, 2020
Summary: Astronomers looking farther back in time than ever before are giving us a better idea of what the early universe must have been like, and we've identified another of the mysterious ultraluminous X-ray pulsars.
Episode 47: Mars Express - Triumph From Disaster
Air Date: June 17th, 2020
Summary: Mars Express, one of the longest-running planetary probes ever made, was only intended to last for about two Earth years, but it's still going at 17! And it's taught us an unbelievable amount, including everything from studying its geology and atmosphere to searching for signs of life!
Episode 50: Our Galaxy Could Be Full of Exoplanets with Oceans
Air Date: June 27th, 2020
Summary: Earlier this spring NASA announced a new research model that predicts that ocean worlds are far from rare, and our galaxy might be full of them. And a new study examines evidence that Pluto may have had an underground ocean all along!
Episode 55: The Mysterious Green Glass on the Moon (Plus - How to See Comet NEOWISE!)
Air Date: July 18th, 2020
Summary: Earlier this month, a Chinese moon rover discovered a mysterious glittery substance at the bottom of a lunar crater. How did it get there? Also, Comet NEOWISE takes thousands of years to circle the Sun, and right now we can see it in our night sky!
Episode 56: Cosmic Shear - Revealing the Invisible Universe
Air Date: July 22nd, 2020
Summary: What exactly are the invisible things out there, and how did they help form the universe as we know it? To explore and understand the most spectacular structures out there, scientists have been using cosmic shear to indirectly detect dark matter, and map out and how it’s distributed around the universe.
Episode 57: These Icy Rocks Might Be from Another Solar System
Air Date: July 25th, 2020
Summary: New research suggests that Venus’ patterned crust might currently be more active than we thought! Astrophysicists have also modeled the orbits of mysterious objects between Jupiter and Neptune, and found that they could have come from other solar systems!
Episode 61: This Stellar Blast Showered the Universe with… Calcium
Air Date: August 8th, 2020
Summary: We knew some stars created large amounts of calcium, but no one really ever knew how...until now! Plus, astrophysicists believe they’ve finally seen evidence of the star that created one of the most important supernovas ever!
Episode 62: Satellite Squad Goals - The Cluster Mission to the Magnetic Field
Air Date: August 12nd, 2020
Summary: Earth’s magnetic field is special! And, in the last 20 years, we’ve made incredible discoveries, thanks to a squad of probes that have flown around our planet, observing solar wind as a team!
Episode 65: Mystery Solved - We Finally Know Why Betelgeuse Suddenly Faded
Air Date: August 22nd, 2020
Summary: 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.
Episode 68: Mars's Surface Is Messed Up | The Martian Dichotomy
Air Date: September 2nd, 2020
Summary: Most rocky planets have pretty consistent surface features, with a fairly even mix of mountains and basins in each hemisphere. This is NOT the case on Mars! What do scientists know about this mystery?
Episode 69: The First Water on Earth Might've Come From… Earth?
Air Date: September 5th, 2020
Summary: Astronomers have thought for years that Earth was dry in the beginning, but a new paper suggests that Earth might have actually started out wet! And In other meteorite news, a new study of impact sites might give us new clues about what’s happening deep inside the earth!
Episode 70: The Cosmic Ladder That Lets Us Map the Universe
Air Date: September 9th, 2020
Summary: Considering how massive our universe is, we know the distances to cosmic objects surprisingly well. What tools and clues do scientists use to measure distances that are so enormous they sound like made-up numbers?
Episode 71: Found - The Missing Link of Black Holes
Air Date: September 12nd, 2020
Summary: Astronomers have been trying to figure out black holes for hundreds of years, and newly published research may hold some big clues! Plus, rust isn’t supposed to happen in dry and airless places like the Moon. Could the elements that allow for rust have come from Earth?
Episode 72: The Telescope That Revealed the X-Ray Universe
Air Date: September 16th, 2020
Summary: Some of the most exciting phenomena in space can’t be seen from Earth because our atmosphere soaks up high-energy light. That’s why NASA built Chandra, the most powerful X-ray telescope ever launched, and the observatory has helped scientists make major discoveries about high-energy events in space, including the processes surrounding the birth and death of stars!
Episode 73: Dark Matter Is Even Stranger Than We Thought
Air Date: September 19th, 2020
Summary: Scientists can see how dark matter is distributed based on how its gravity affects light, but when astronomers compared recent data from the Hubble Space Telescope and the Very Large Telescope to current models, something didn’t add up. Does this mean our current assumptions about dark matter physics are wrong?
Episode 74: The Simple Molecule Behind Our Complex Universe
Air Date: September 23rd, 2020
Summary: All the complexity in the universe ultimately owes its existence to one of the simplest materials possible - molecular hydrogen. And not only did this molecule play a huge role in building the universe as we know it, today, it also helps us explore it.
Episode 77: We Know More About That Underground Lake on Mars
Air Date: October 3rd, 2020
Summary: Scientists have taken a look at the underground lake found on Mars in 2018, and it might not be the only one! Plus, new clues might help us understand why the Sun’s atmosphere is so much hotter than the surface!
Episode 80: The Two-Faced Role of Planetary Magnetic Fields
Air Date: October 14th, 2020
Summary: Given that Earth’s magnetic field helps protect its life-sustaining atmosphere, you might think that the stronger a planet’s magnetic field, the better. But as it turns out, some planets’ relationships with their magnetic fields are a little more complicated.
Episode 81: How We Learned Black Holes Actually Exist | 2020 Nobel Prize in Physics
Air Date: October 17th, 2020
Summary: Did you know Einstein never thought we’d find actual black holes in space? It took decades of research to show black holes are physically possible, and some of the scientists behind that research were honored this year with the Nobel Prize in Physics.
Episode 82: What's It Like to Live in Space? | Compilation
Air Date: October 21st, 2020
Summary: If you want to spend any amount of time in space, you'll have to make adjustments to your lifestyle. From what you eat, to how you go to the bathroom, to regular activities you're simply not allowed to do on the ISS, SciShow Space has covered what life is like in orbit a number times.
Episode 85: There’s Water on the Moon—and Possibly More Than We Thought
Air Date: October 31st, 2020
Summary: If we want to establish a colony on the Moon, coming up with enough water is a huge challenge. Scientists have long suspected there might be water hiding on the lunar surface. Were they right? Plus, some quick recovery work led to exciting discoveries from chunks of a meteorite!
Episode 87: How Other-Worldly Auroras Help Us Explore the Galaxy
Air Date: November 11st, 2020
Summary: Earth’s northern and southern lights are some of the most magical sights on our planet. But they’re not unique to Earth, and aside from being beautiful, auroras can also give us unusual insights into these other worlds.
Episode 89: The Deepest Sound in the Universe
Air Date: November 18th, 2020
Summary: Thanks to X-ray telescopes, scientists in the 1970s found the first real evidence that black holes actually existed, and astronomer Andrew Fabian has used X-ray research to unlock incredible mysteries ever since, including a giant sound wave that can travel through intergalactic gas!
Episode 92: How a Doomed Spacecraft Lived to Tell the Tale of the Sun
Air Date: December 2nd, 2020
Summary: What would you do if you were in charge of a billion-dollar satellite that was spinning out of control? In 1998, NASA and ESA engineers had to solve this exact problem. How did they avert this disaster?
Episode 94: The Tiny Planet Revealing Gravity’s Big Secrets
Air Date: December 9th, 2020
Summary: Mercury’s path through our solar system is, well, a little eccentric, and some of its movements were a mystery astronomers couldn’t explain for a long time. Then, in the early 20th century, Einstein reran the numbers and proved a whole lot more!
Episode 95: This Nebula Is Disappearing Absurdly Fast
Air Date: December 12nd, 2020
Summary: Over just 20 years, the Stingray nebula has become anywhere from 29 to 900 times dimmer! It could teach us a ton about how nebulas evolve over time, and what happens when everything is going a lot faster than expected.
Episode 96: Our Smelly Solar System
Air Date: December 16th, 2020
Summary: Sight, sound, and yes, taste, have all helped humanity better understand space, but what about smells? Scientists think we have a pretty good idea of what some places smell like, and decoding astronomical aromas can be a good way of working out what places are made of.
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