Great Minds of Astronomy: Cecilia Payne-Gaposchkin

Welcome to SciShow Space! In this episode Caitlin Hofmeister will talk about Cecilia Payne-Gaposchkin, one of the most influential women in astronomy!

A ‘New Neptune’ With Water, and Cyanide in Space

SciShow Space News shares the latest developments from around the universe, including the discovery of water vapor on a new “exo-Neptune,” and cyanide found in the clouds where stars are born.

What Would Happen If the Planets Lined Up?

Planetary alignments: They’re the favorite astronomical scenario of kooks, con artists, and Hollywood producers everywhere. But has it ever happened? And what would it do to Earth if it did? 

The Future of Our Sun and Earth

SciShow Space gives you a blow by blow account of what’s going to happen to the sun — and Earth.

Curiosity’s Sequel, and the Key to Finding Alien Life

SciShow Space News shares the latest developments from around the universe, including the Curiosity’s arrival at its final destination, and new insights into what clues we should really be looking for in our search for alien life.

What’s it like on Venus?

SciShow Space takes you on a tour of Venus, a world with such an extreme environment that you might call it “Earth’s evil twin.”

Our New Galactic Neighborhood, and a Tar Comet?

SciShow Space shares the latest news from around the universe, including new insights into the giant supercluster of galaxies that we call home, and the first “data baby” from Rosetta’s rendezvous with a comet.


These are the depictions of the most intense meteor storm in recorded history – the Leonid meteor storm of 1833. The Leonid meteor shower is annually active in the month of November, and it occurs when the Earth passes through the debris left by the comet Tempel-Tuttle. While the typical rates are about 10 to 15 meteors per hour, the storm of 1833 is speculated to have been over 100,000 meteors per hour, frightening people half to death.
Here’s how Agnes Clerke, an astronomer witnessing the event, described it:  “On the night of November 12-13, 1833, a tempest of falling stars broke over the Earth… The sky was scored in every direction with shining tracks and illuminated with majestic fireballs. At Boston, the frequency of meteors was estimated to be about half that of flakes of snow in an average snowstorm.” (x)

How Much of Me Is “Star Stuff?”

Carl Sagan famously observed that we are all made of “star stuff.” But what does that mean? And how much of you is really made of dead stars? SciShow Space explains!

How Do We Measure the Distance of Stars?

It’s School of YouTube Week! Comic Relief and YouTube are partnering to send students to school! The Bad Astronomer Phil Plait teaches Hank how to measure the distance to the stars. 

Help more students learn by giving to Comic Relief.