Brown Dwarfs: Crash Course Astronomy #28

The sky, we now know, is full of stars AND planets. Stars are massive enough to fuse hydrogen into helium in their cores, generating energy. The heat created by that process tries to expand them, but their gravity balances that outward force, creating an equilibrium. Planets, even gas giants like Jupiter, are far too small […]

This Is the Biggest Neutron Star Collision We’ve Ever Detected

Gravitational waves resulting from crashing neutron stars have rocked our universe once again. And while you may not have felt it, LIGO sure did. And these gravitational waves are the ripples from a collision of the most massive neutron star pair we have ever witnessed. As you may know, this isn’t LIGO’s first rodeo with […]

How Scientists Are Hunting for the Universe’s First Stars

Looking through a telescope is like looking back in time. Because light has a finite speed limit, the farther away you look, the deeper into the past you see. With radio telescopes we can even see the universe as it was just after the big bang, nearly 13.8 billion years ago. But after that early […]

Get Ready for a New Star in the Night Sky! | SciShow News

{♫Intro♫} Stars explode and die all the time, but they’re so faint and far away that on Earth, we rarely notice. Dying stars we can see with the naked eye are few and far between. Luckily for us, though, three astronomers announced at the American Astronomical Society meeting last week that in not too long, […]

What If We Nuked The Sun?

Imagine, if you will, a world without conflict. Peace reigns supreme across all continents, no more fighting, no more killing. Doesn’t that sound nice? Food and drink for everyone, a place to live for all. Utopian, sure, but it is nice to think about! But there’s one big problem with a world like that: all […]

How Large is the Universe?

The universe has long captivated us with its immense scales of distance and time. How far out does it stretch? Where does it end, and what lies beyond the star fields and the streams of galaxies that extend as far as telescopes can see? These questions are beginning to yield to a series of extraordinary […]

Scientists Just Fit Our Universe in a Box…Wait What

This is the universe in a box. Dark matter, supermassive black holes, galaxies, stars, magnetic fields—our universe, trapped in a cube. Well some of it, anyway. What this really is is our most advanced simulation of the universe and its evolution ever. This very impressive feat is the result of a project called Illustris—The Next […]

Simulated Image Shows the Power of NASA’s WFIRST

[Music throughout] Narrator: When it opens its eyes to our universe in the mid-2020s, WFIRST, the Wide Field Infrared Survey Telescope, will capture images unlike any satellite before it. WFIRST will have the same image resolution as Hubble, but will cover an area 100 times larger. WFIRST will also view the sky in carefully selected […]

Thunderbolts of the Gods | Official Movie

The Earth was once the center of the universe. It was flat. Then it was round and it circled the Sun. It was no longer the center of the universe. It was a tiny part of the Milky Way. The Milky Way was the only Galaxy. Except it wasn’t. It was only one of billions […]

Interstellar Civilizations & Time

This episode is sponsored by Brilliant Keeping track of time is tricky enough nowadays, it’s a whole different story when your clocks and calendars don’t have 24 hours or 365 days, let alone run slower. But that’s barely the tip of the iceberg of problems with time facing interstellarcivilizations. So today we’ll be closing out […]