Astronomers have spent the past century (roughly) trying to figure out where all the elements on the Periodic Table come from. For example, the oldest hydrogen emerged when the universe was just a baby (Big Bang nucleosynthesis). And the...

Scientists have been slowly extending the periodic table one element at a time, pushing to higher and higher masses, and have discovered some incredibly useful materials along the way. But the elements at the current end of the table are...

Adamantium, bolognium, dilithium. Element Zero, Kryptonite. Mythril, Netherite, Orichalcum, Unobtanium. We love the idea of fictional elements with miraculous properties that science has yet to discover. But is it really possible that...

Our solar system is a tiny bubble of habitability suspended in a vast universe that mostly wants to kill us. In fact, a good fraction of our own galaxy turns out to be utterly uninhabitable, even for sun—like stellar systems. Is this why...

When we scan the heavens with giant telescopes we see galactic cannibalism everywhere. We see moments that appear frozen on the human timescale, but are really snapshots of the incredibly violent process of galaxy formation. This is how...

Carl Sagan’s famous words: “We are star stuff” refers to a mind-blowing idea – that most atomic nuclei in our bodies were created in the nuclear furnace and the explosive deaths of stars that lived in the ancient universe. In recent...

Thanks to LastPass for sponsoring this video. Check out LastPass hereref='http://bit.ly/2GbcEci' target='_blank' rel='nofollow'>here Fusion power is supposed to save us from fossil fuels, so when is nuclear fusion going to be a...

Finally, after what seems like eons and eons, the end is nigh. We're talking not only about the end of Crash Course Big History, but also the end of everything. The end of humanity and the end of the universe.John and Hank Green will...

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 directly observe the collision of two neutron stars for...

Stars are our stellar alchemists. They spend their entire lifespan creating and molding elements. In their final moments, a supernova spreads these elements out into the universe, providing the building blocks for new stars, planets, and...

Based on what we think we know about the universe these stars really shouldn't exist, but they do!

Finally, after what seems like eons and eons, the end is nigh. We're talking not only about the end of Crash Course Big History, but also the end of everything. The end of humanity and the end of the universe.John and Hank Green will...

What does it really take for a planet to be habitable? It turns out, certain parts of a star system, a galaxy, and even the universe as we know it, are more habitable than others. Get to know them as Hank takes you on a tour of some of...

We've only found one planet in a globular cluster, where gravitational interactions should usually rip baby planets apart, but that's not all that excites astronomers about PSR 1620-26 b.

Last year LIGO announced the detection of gravitational waves from the merger of two black holes. The science world went a little crazy. Only a few weeks ago a new rumour emerged: that LIGO had, for the first time, spotted gravitational...

Fusion power is supposed to save us from fossil fuels, so when is nuclear fusion going to be a viable option and why has it been so elusive?

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.

Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held...

Population III stars were the very first stars in our universe and far larger than any we can see today. Where are they now?

The explosion of a massive star at the end of its life.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...

We've learned a lot about stars! We know how they form, and we know that most of them exist in galaxies. But how are they arranged within galaxies? And are there different types of galaxies or are they all the same? There is a lot to...

Thursday, July 30, 2:00 pm - 3:00 pm ET: NSF-funded Physics Frontiers Centers (PFCs) are pushing the frontiers of science across the disciplines of physics. The Joint Institute for Nuclear Astrophysics Center for Evolution...

Who are the biggest super stars in the universe? For Adam Burrows, an astrophysics professor at Princeton University, it's not who, but ""what,"" and they are far from Hollywood, or even Earth, for that matter. Burrows would tell you...

5 of the most unusual, amazing and interesting stars we've discovered in our universe. Red giants, supernovas, hybrid stars, orbiting binaries, large stars, old stars, small stars, we've discovered thousands of stars within our milky way...