All episodes 12 seasons

Every episode, one list

Every episode that is out, newest first. 89 more are planned.

11 live · 89 planned

• WATCH EP 11 · S02 Deep TimeEarth's 4.5 Billion Years as One Day: All of History Fits in the Last SecondSqueeze Earth's whole life, 4.54 billion years, into one 24-hour day. One second on this clock is about 52,500 years. Molten rock at midnight, the…
• WATCH EP 10 · S01 The RulerThe Observable Universe in One Continuous ShotOne continuous shot, no cuts: from Earth as a one-inch marble to the edge of everything we can see. The universe is about 13.8 billion years old…
• WATCH EP 09 · S01 The RulerWhat If Apophis Hit Your City? The Math, Then the Miss: 19,700 MilesThis is a calculation. Apophis will pass Earth safely on 13 April 2029, about 19,700 miles (31,600 km) above the surface (NASA/JPL). No impact risk…
• WATCH EP 08 · S01 The RulerThe Biggest Things That Exist, With the Error Bars Left OnEvery video says the biggest star would swallow Saturn. Its best published size, 1,840 solar radii, stops short; only the top of its error bar gets…
• WATCH EP 07 · S01 The RulerThe Milky Way From Outside, Built Only From Measured StarsEvery picture of our galaxy from the outside is a painting. This one is built only from objects whose distances somebody measured: 199 radio masers…
• WATCH EP 06 · S01 The RulerYou're Moving 830,000 MPH Right Now. Why Can't You Feel It?Sitting still, you are moving at about 1,040 mph (the Earth's spin, at the equator), 66,600 mph around the Sun, about 550,000 mph around the galaxy…
• WATCH EP 05 · S01 The RulerThe 20 Nearest Stars, Measured, Not GuessedThe closest star to the Sun is so faint you cannot see it, and nobody found it until 1915. This episode shows how its distance, and the distances of…
• WATCH EP 04 · S01 The RulerOne Light-Year, Laid Along a Real RoadA light-year sounds like a time. It is a distance: 5.88 trillion miles (9.46 trillion km). Nobody can picture that, so we put it on the Vishala…
• WATCH EP 03 · S01 The RulerLight Leaves the Sun. Here Is How Long It Takes to Reach EverythingThe fastest thing in the universe still needs time. We follow one flash of light from the surface of the Sun to every planet, to one light-day, and…
• WATCH EP 02 · S01 The RulerEvery Planet Fits Between Earth and the Moon (Only on Some Days)You have seen the claim: line up every other planet in the solar system and they fit between Earth and the Moon. We built it on the Vishala ruler…
• WATCH EP 01 · S01 The RulerIf Earth Were a Marble, the Moon Is 30 Inches AwayShrink Earth to a 1-inch marble and every space picture you have ever seen falls apart. The Moon is a peppercorn 30 inches (77 cm) away, the Sun is…

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