Overview

Category: Astronomy
Share:
Download:

On the 40th anniversary of the famous ‘Blue Marble’ photograph taken of Earth from space, Planetary Collective presents a short film documenting astronauts’ life-changing stories of seeing the Earth from the outside – a perspective-altering experience often described as the Overview Effect.

You might also like

The Humans

Carl Sagan talks about our place in the universe

1989 • The Sagan SeriesAstronomy

Pale Blue Dot

"That's home. That's us. On it, everyone you ever heard of, every human being who ever lived.."

1990 • The Sagan SeriesAstronomy

The Search for Life: The Drake Equation

For many years our place in the universe was the subject of theologians and philosophers, not scientists, but in 1960 one man changed all that. Dr Frank Drake was one of the leading lights in the new science of radio astronomy when he did something that was not only revolutionary, but could have cost him his career. Working at the National Radio Astronomy Observatory in Greenback in Virginia, he pointed one of their new 25-metre radio telescopes at a star called Tau Ceti twelve light years from earth, hoping for signs of extraterrestrial intelligence.

Astronomy

Pluto's Heart

A voyage a decade in the making, the New Horizons probe has travelled to the end of our Solar System to reveal a world unlike any other, Pluto. Now, as it heads deep into the Kuiper Belt, those responsible for its magnificent journey share their fears, joy and hope for this piano-sized explorer.

2016 • Space ProbesAstronomy

Comets

Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail. We’ve visited comets up close and found them to be lumpy, with vents in the surface that release the gas as ice sublimates. Eons ago, comets (and asteroids) may have brought a lot of water to Earth -- as well as the ingredients for life.

2015 • Crash Course AstronomyAstronomy

Naked Eye Observations

Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye.

Crash Course AstronomyAstronomy