Aliens: The Big Think • 2016

Category: Astronomy

The hunt for aliens is on! After a distinguished career in cosmology Professor Martin Rees, the astronomer royal, has taken up the search for extra-terrestrials. Looking for aliens is no longer science fiction - it is a question that's engaging some of the greatest minds in science. As our knowledge of the universe has increased, we're getting closer to answers. Many scientists now think we live in galaxy with a billion Earth-like planets, many of which may be teeming with life. But what kind of life? Has anything evolved into beings we could communicate with? This film gets inside the minds of the scientists considering one of the most exciting and profound questions we can ask - are we alone in the universe? Professor Rees thinks we may have our idea of what an alien is like all wrong. If he's right, it's not organic extra-terrestrials we should look for, it's machines.

You might also like

From Space

The first of the two-part series, titled "From Space," explores the birth and early life of Earth, as seen from orbit, using clues from over 300 satellites and space stations surveying Earth’s landmarks to work backwards and piece together what the planet’s early days might have looked like.

1/2The Life of Earth • 2019 • Astronomy

The Indifferent Amazing Universe

A science short by Sean Carroll, Modern physics reveals a universe with no need of a creator -- and a world where each person creates their own meaning.

2017 • Astronomy

Mission to the Sun

When a team of scientists have launched a space probe to the heart of our solar system in brand-new mission to our Sun, it makes fresh discoveries reveal how it works; along the way, experts uncover a surprise find on Mercury.

S1E3Mysteries of our Universe: Our Solar System • 2019 • Astronomy

Future Missions

NASA has taken us to the outer reaches of our Solar System, but there are still many mysteries to explore. New probes are being designed to look at our sun, the deep oceans of icy moons, and perhaps even our closest neighboring system - Alpha Centauri.

6/6Space Probes • 2016 • Astronomy

Cosmic Encounters

“Cosmic Encounters,” tells one of mankind’s oldest dreams: to explore what is beyond our planet. This documentary has been filmed in space by the astronauts of the International Space Station. It is a tribute to the many scientists who made the dream of conquering space come true.

2012 • Astronomy

White Dwarfs & Planetary Nebulae

Today Phil follows up last week’s look at the death of low mass stars with what comes next: a white dwarf. White dwarfs are incredibly hot and dense objects roughly the size of Earth. They also can form planetary nebulae: huge, intricately detailed objects created when the wind blown from the dying stars is lit up by the central white dwarf. They only last a few millennia. The Sun probably won’t form one, but higher mass stars do.

30Crash Course Astronomy • 2015 • Astronomy