Tag Archives: nerdfighters

The Gravity of the Situation: Crash Course Astronomy #7

We live — and stop me if I’m going too fast — on a planet. I mean, sure, duh. But this isn’t the natural state of the Universe; or, at least, it’s not the way things usually are. Most of the Universe is pretty empty — that’s why we call it “space” — and if… Read More »

Introduction to the Solar System: Crash Course Astronomy #9

The Solar System is the name we give to our local cosmic backyard. A better way to think of it is all the stuff held sway by the Sun’s gravity: The Sun itself, planets, moons, asteroids, comets, dust, and very thin gas. If you took a step back — well, a few trillion steps back… Read More »

Eclipses: Crash Course Astronomy #5

We humans of planet Earth benefit from a great coincidence. It’s a coincidence of time, and of space. And of math. The coincidence is this: the Sun is about 400 times wider than the Moon, and it’s also on average about 400 times farther away than the Moon. The apparent size of an object in… Read More »

Tides: Crash Course Astronomy #8

Y’know, if Shakespeare had been an astronomer, he’d have said that “there is a tide in the affairs of the Universe, and on such a full sea are we now afloat.” He would’ve been right. You might just think of tides as the ocean going in and out every day, but in fact what astronomers… Read More »

Feel & Squeal Challenge ft. Hank Green

– First we feel. – Then we squeal. Let’s talk about that. ♪ (theme music) ♪ – Good Mythical Morning! – Ladies and gentlemen, Mythical… …Beasts, please welcome to the show, coming all the way from Nerdfighteria… – …the Hank half of the vlogbrothers… – Woo! – …it’s Hank Green! – Thank you guys for… Read More »