Alien • 2018 • episode "8/10" One Strange Rock

Category: Astronomy
Download:

All life on Earth started as single-cell bacteria and stayed like that for two billion years. So even if we do find alien life out there, what are the chances of that life being complex like us? Astronaut host – Mae Jemison.

One Strange Rock • 2018 • 10 episodes •

Gasp

Astronaut Chris Hadfield reveals the unlikely and unexpectedly interconnected systems that allow life on our planet to breathe.

2018 • Astronomy

Storm

Ever wonder how our planet got here? It was born in a cosmic storm. The violence could have destroyed us, but instead it made us. Astronaut host – Nicole Stott.

2018 • Astronomy

Shield

The epic story of Earth's battle with the sun. Our star would wipe us out in an instant without the incredible planetary shields that protect us. Astronaut host – Jeff Hoffman.

2018 • Astronomy

Genesis

Our rock is special - it's alive. Somehow our planet cooked up stardust and made life. But how did that begin and is it likely elsewhere? Astronaut host – Mae Jemison.

2018 • Astronomy

Survival

It's not enough for Earth to be habitable; it also has to be lethal for life to thrive. This is the story of how life evolved hand in hand with death. Astronaut host – Jerry Linenger

2018 • Astronomy

Escape

Astronaut Chris Hadfield has seen the bullet holes left by asteroids on Earth's surface. Our planet is vulnerable. Could we ever survive elsewhere?

2018 • Astronomy

Terraform

For nearly 4 billion years, life has sculpted almost every part of Earth. But how exactly did life turn this once barren rock into a paradise? Astronaut host – Mike Massimino.

2018 • Astronomy

Alien

All life on Earth started as single-cell bacteria and stayed like that for two billion years. So even if we do find alien life out there, what are the chances of that life being complex like us? Astronaut host – Mae Jemison.

2018 • Astronomy

Awakening

Of all life on Earth, we're the only ones with the smarts to leave our planet. How did our planet make us so intelligent? Astronaut host – Leland Melvin.

2018 • Astronomy

Home

After 665 weightless days in space, NASA's most experienced astronaut, Peggy Whitson, smashes through the atmosphere on her last journey home to planet Earth. With unprecedented filming on board the ISS during Peggy's final mission and with the support of our other featured astronauts, we reveal how their time in space transforms their understanding of our planet's wonders, insights that will change our perspective, too. There is no place like home. Or is there? Just how strange is our rock, and is it really unique in the universe? Astronaut host – Peggy Whitson.

2018 • Astronomy

You might also like

The Interstellar Mysteries

Discoveries about interstellar space, the space between the universe's stars, reveal that it's not empty and unremarkable as previously thought, but filled with weird objects and strange phenomena that might hold the darkest secrets of the cosmos.

S7E3How the Universe Works • 2019 • Astronomy

Distances

How do astronomers make sense out of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth, and from that the distance to and the sizes of the Moon and Sun. Once the Earth/Sun distance was found, parallax was used to find the distance to nearby stars, and that was bootstrapped using brightness to determine the distances to much farther stars.

25Crash Course Astronomy • 2015 • Astronomy

The Sun’s surprising movement across the sky

Suppose you placed a camera at a fixed position, took a picture of the sky at the same time every day for an entire year, and overlaid all of the photos on top of each other. What would the sun look like in that combined image? A stationary dot? A circular path? Neither. Oddly enough, it makes a ‘figure 8’ pattern, known as the Sun’s analemma.

TED-Ed • 2015 • Astronomy

The Search for Life in Space

To determine whether we're alone in the universe, astrobiologists look to Jupiter, Mars, and, closer to home, extreme environments on Earth.

2016 • Astronomy

Open for Business

After we reached the moon, NASA refocused energy on mastering routine spaceflight and living in earth orbit. With the retirement of the Shuttle program, we explore the massive contributions Low Earth Orbit operations have brought to our lives and watch the new guys in town spread their wings, ready to take their place in space history

3/4Space Voyages • 2013 • Astronomy

Black Holes

We’ve covered a lot of incredible stuff, but this week we’re talking about the weirdest objects in space: BLACK HOLES. Stellar mass black holes form when a very massive star dies, and its core collapses. The core has to be more than about 2.8 times the Sun’s mass to form a black hole. Black holes come in different sizes, but for all of them, the escape velocity is greater than the speed of light, so nothing can escape, not matter or light. They don’t wander the Universe gobbling everything down around them; their gravity is only really intense very close to them. Tides near a stellar mass black hole will spaghettify you, and time slows down when you get near a black hole — not that this helps much if you’re falling in.

33Crash Course Astronomy • 2015 • Astronomy