PBS
What Supernova Distance Would Trigger Mass Extinction?
New ReviewThe deaths of massive stars results in one of the most beautiful and violent events in the universe: the supernova. But if these explosions occur too close to Earth their radiation can impact life and even trigger mass extinctions.
PBS
What If The Speed of Light is Not Constant?
New ReviewOne of the most fundamental physics facts is that the speed of light in a vacuum is constant for all observers. But can we really be sure that the speed of light wasn’t different in the past, or perhaps in other parts of the universe? In...
SciShow
The Closest Black Hole Isn't as Far as You'd Like
Where is the closest black hole to Earth? Well, they're pretty hard to find, so the record-holder keeps getting updated. Currently, it's an unassuming black hole called Gaia BH1. But research has hinted at several black holes that might...
SciShow
The Most Important Explosion in History
Not long after the supernova of 1604, the telescope was invented. But astronomers would have to wait nearly FOUR CENTURIES to witness the next supernova that was visible to the naked eye. It was 1987, and a blue supergiant in the Large...
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
This Giant Space Flower Could Help Us Find A New Earth
Over the past three decades, astronomers have discovered thousands of planets beyond our solar system. But while some of them might be the right size and mass to be some kind of Earth 2.0, we don't know if any of them is truly...
TED Talks
Are we alone in the universe? We're close to finding out | Lisa Kaltenegger
Astrophysicist Lisa Kaltenegger explores the thrilling possibility of discovering life beyond Earth, highlighting how cutting-edge technology like the James Webb Space Telescope lets us analyze distant planets for signs of life in...
MinutePhysics
Which Planet Has the Best Eclipse?
Solar eclipses don't just happen here on earth - moons of other planets also pass between those planets and the sun, resulting in various types of solar eclipses on Mars, Jupiter, Saturn, Uranus, Neptune, and even non-planets like Pluto,...
TED Talks
TED: The probe on a mission to touch the Sun | Nour E. Rawafi
From its life-sustaining energy to its explosive geomagnetic storms, the Sun has many mysteries, says astrophysicist Nour E. Rawafi. He sheds light on NASA's latest endeavor to better understand our fiery neighbor and its impact on the...
MinutePhysics
Why is it Dark at Night
Have you ever wondered why you look up and see a dark sky at night?
MinutePhysics
Where Do Galaxies Come From?
Thanks to the Space Telescope Science Institute (STScI) and NASA's James Webb Space Telescope for supporting this video! In particular, thanks to Dan Coe of STScI for taking the time to chat with me about what we do and don't know about...
MinutePhysics
How Do We Know What Air is Like on Other Planets?
How do we know what the air is like on planets we haven't visited? This video explains how to see air from 150 light years away. Thanks to NASA's James Webb Space Telescope project at the Space Telescope Science Institute for supporting...
MinutePhysics
Common Physics Misconceptions
What if you thought the earth was flat? And then you found out it isn't?
MinutePhysics
Black Holes, Neutron Stars, and White Dwarfs (Collab. w/ MinuteEarth)
This video is about the differences between the corpses or final degenerate dense star forms that dead stars take: black holes, neutron stars, and white dwarfs. The main distinguishing features between them are the mass cutoffs...
TED Talks
Interstellar Discoveries and the Quest for Cosmic Humility
Astrophysicist Avi Loeb contrasts the ancient awe that Moses felt when witnessing the burning bush with modern humanity's overconfidence since Nietzsche's declaration that "God is dead." He argues that the rise of science and technology...
SciShow
Cosmic Tails (That Aren’t From Comets)
Comets are famous for having space tails. But they're not the only ones! Asteroids, planets, and even stars can rock tails of their own.
SciShow
Can an Equation Really Tell Us How Many Aliens Exist?
In 1961, the astronomer Frank Drake wrote down what is now known as the Drake Equation. It's so important to the culture surrounding the search for extraterrestrial life that scientists have carved it into the upcoming Europa Clipper...
SciShow
Photonic Propulsion: Mars in 3 Days?
We can get to Mars in 3 days, . . .sort of, maybe. In this episode of SciShow Space Reid Reimers explains the possibilities of photonic propulsion in use with space travel.
MinutePhysics
How Do We Know The Universe Is Accelerating?
The universe is expanding – this we know from looking at red shifts of distant galaxies – but the acceleration of the universe's expansion is harder to measure. It requires measuring the change of recession velocity over time, and it's...
SciShow
What Color Was the Big Bang?
If you could survive a trip to the very first moments of reality as we know it, what color would you see?