Using Stars to See Gravitational Waves • 2018 PBS Space Time

Category: Astronomy
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Now that gravitational waves are definitely a thing, it’s time to think about some of the crazy things we can figure out with them. In some cases we’re going to need a gravitational wave observatory - in fact, we've already built one.

PBS Space Time • 2015 - 2018 • 7 episodes •

Do Events Inside Black Holes Happen?

Black holes! From Stephen Hawking to Interstellar, black holes are mammoths in the world of science AND sci-fi. But what exactly IS a black hole? Do events happen inside black holes? Are black holes really a hole? Are black holes really black?! Join Gabe on this week’s episode of PBS Space Time as he debunks popular black hole misconceptions, and rethinks what the term, ‘black hole’, even means. Thought you knew what a black hole was? Think again!

2015 • Astronomy

The Andromeda - Milky Way Collision

The Andromeda galaxy is heading straight toward our own Milky Way. The two galaxies will inevitably collide. Will that be the very last night sky our solar system witnesses?

2018 • Astronomy

The Unruh Effect

Worried about black holes? Consider this: Every time you accelerate - you generate an event horizon behind you. The more you accelerate away from it the closer it gets. Don’t worry, it can never catch up to you, but the Unruh radiation it generates sure can.

2018 • Astronomy

The Physics of Life

Our universe is prone to increasing disorder and chaos. So how did it generate the extreme complexity we see in life? Actually, the laws of physics themselves may demand it.

2018 • Astronomy

Using Stars to See Gravitational Waves

Now that gravitational waves are definitely a thing, it’s time to think about some of the crazy things we can figure out with them. In some cases we’re going to need a gravitational wave observatory - in fact, we've already built one.

2018 • Astronomy

Black Hole Swarms

It’s been conjectured that the center of the Milky Way is swarming with tens of thousands of black holes. And now we’ve actually seen them.

2018 • Astronomy

Quantum Theory's Most Incredible Prediction

Let’s talk about the best evidence we have that the theories of quantum physics truly represent the underlying workings of reality.

2018 • Physics

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Gasp

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

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Star Clusters

Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held together by gravity. They’re young, and evaporate over time, their stars let loose to roam space freely. Globular clusters, on the other hand, are larger, have hundreds of thousands of stars, and are more spherical. They’re very old, a significant fraction of the age of the Universe itself, and that means their stars have less heavy elements in them, are redder, and probably don’t have planets (though we’re not really sure).

35Crash Course Astronomy • 2015 • Astronomy

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.

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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.

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Mangalyaan: India's Mission to Mars

On the anniversary of the launch of one of the most successful space mission to Mars, the National Geographic Channel is set to premiere a documentary on the Mars Orbiter Mission (MOM) also known as Mangalyaan. The MOM, was launched on November 5 in 2013 by Indian Space Research Organisation (ISRO) and entered the orbit of the red planet on September 24, 2014. The documentary produced by Miditech captures its enthralling journey of over 650 million kilometeres. In its most daring missions to date, India successfully sent a spacecraft to orbit around Mars, making it the fourth space agency in the world and the first Asian country, to successfully send a mission to the red planet. And they did this in record time, choosing a unique route and on a shoe-string budget, pulling off what is now globally recognised as the cheapest ride to Mars! So how did the (ISRO) scientists, with no previous experience in sending an inter planetary mission, design, develop and successfully launch and navigate Mangalyaan through space? What were the hurdles they faced and what out of the box solutions did they come up with to address those challenges? Using a combination of live action, expert interviews, archive footage and graphic representations the film captures the tension and drama points of the space mission. The documentary also focus on the salient features of the mission, all the drama, excitement, last minute preparations, the countdown and the successful launch.

2017 • Astronomy