PBS
How Will We (Most Likely) Discover Alien Life?
New ReviewThe first discovery of extraterrestrial life will almost certainly NOT be when it visits us, nor when we visit it. It won’t be when we see it’s stray TV signals. It’ll be in the excruciatingly faint changes in the color of alien sunsets...
SciShow
The Top 10 Space Pictures of 2024 (and What They Mean)
Let's say goodbye to 2024 by highlighting some amazing space images that were released this year. They aren't just pretty — astronomers can actually study them to learn more about the universe! Hosted by: Niba Audrey @NotesbyNiba (she/her)
SciShow
JWST Made a Cosmological Crisis Worse
Astronomers have two main ways to calculate how fast the universe is expanding. Unfortunately, they don't agree with one another. The JWST was supposed to help solve this discrepancy, known as "The Hubble Tension" or "The Crisis in...
PBS
How We Know The Universe is Ancient
The universe is precisely 13.8 billion year old - or so our best scientific methods tell us. But how do you learn the age of the universe when there’s no trace left of its beginnings?
PBS
Science of the James Webb Telescope Explained!
You’ve probably heard about the James Webb Space Telescope and seen some cool pictures. But why should astronomers have all the fun? How do we get to use this new toy ourselves?
PBS
The Crisis in Cosmology
The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent methods have refined its measurement to unprecedented...
PBS
Sound Waves from the Beginning of Time
Invisible to the naked eye, our night sky is scattered with the 100s of billions of galaxies the fill the known universe. Like the stars, these galaxies form constellations – hidden patterns that echo the reverberations of matter and...
Be Smart
The Most Unbelievable Image Ever Captured by Hubble Space Telescope
The Most Unbelievable Image Ever Captured by Hubble Space Telescope
PBS
Perpetual Motion From Negative Mass?
Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples? The answer? Priceless. Because you could use negative-mass apples to build warp drives, travel in time, and construct a perpetual motion machine. In...
SciShow
The Weight of “Nothing” Could Mean Everything (to Physics)
Deep in a Sardinian mine, researchers are constructing an experiment that hopes to solve what's known as The Worst Prediction In The History of Physics, and pin down the true identity of dark energy.
SciShow
Astronomy’s Unsung Hero is a Plain Ol’ Aluminum Ball
In 1965, MIT's Lincoln Laboratory saw their Lincoln Calibration Sphere 1 (LCS-1) launched into Earth orbit. It was an empty aluminum sphere and couldn't do any science of its own. But the world's most boring disco ball has played a huge...
SciShow
NASA's new frontier, and the Trouble with "Gravity"
Hank describes how astronomers used a technique called gravitational lensing to find the most distant galaxy ever detected -- and how NASA is embarking on a new program to use this same technique to peer deeper into space than ever...
SciShow
More on Mating & Monogamy
Hank clarifies the misconceptions about Chagus disease, discusses a couple of interesting celestial events - one that happened in the past and one that will happen in the distant future, and sheds more light on the benefits of sexual...
SciShow
Why It Took a Decade to Launch The James Webb Space Telescope | Compilation
The James Webb Space Telescope has launched! But it was a very long road to get to this point, and we’ve been following the progress for a decade!
SciShow
3 New Discoveries in Space
Hank shares three cool discoveries in space science, including a celestial crucible of phosphorous, noble gases found in a supernova, and plumes of water vapor on Europa.
SciShow
What If Dark Energy Doesn’t Exist?
Dark Energy is what we call the mysterious force that seems to be pushing the universe apart. By some calculations, it makes up 70% of everything in nature. Or...maybe it doesn’t exist at all! Plus, Juno’s observations give us new...
SciShow
Looking for Life During a Lunar Eclipse | SciShow News
Astronomers took advantage of a lunar eclipse to study Earth as if it were an exoplanet, and Mars's Insight lander used seismic data to reveal for the first time boundaries between different layers of Mars.
SciShow
We Found a Planet That Orbits Three Stars..Maybe?
New simulations of a triple-star system in the constellation Orion suggest that a planet might be orbiting three stars, which could drastically increase the amount of the solar systems we believe are out there forming planets! And the...
SciShow
NASAs new frontier and the Trouble with Gravity
Hank describes how astronomers used a technique called gravitational lensing to find the most distant galaxy ever detected -- and how NASA is embarking on a new program to use this same technique to peer deeper into space than ever...
SciShow
Dark Matter
Physicists estimate that dark matter accounts for about twenty three percent of the known universe - the only problem is that no one really knows what it is...
SciShow
This Stellar Blast Showered the Universe with… Calcium | SciShow News
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!
PBS
Telescopes of Tomorrow
The telescopes of tomorrow will see in infrared and ultraviolet. They will peer through space and scan across time. They will allow us to find new supernovae, spot potentially hazardous asteroids, better understand dark energy and peer...
SciShow
Zombie Stars Discovered!
SciShow Space reveals the discovery of a whole new kind of supernova, and the undead stars they leave behind.
SciShow
The Two Asteroids That Shouldn’t Be There
Space Clue: 203 Pompeja and 269 Justitia in the asteroid belt with evidence of being formed outside of it. But the real mystery is how they got there! And we again return to Ganymede with new evidence suggesting even more kinds of water...