Supernovae are some of biggest, baddest explosions around. In this episode, we will learn what causes these cosmic catastrophes, and the various types of supernova that may manifest depending on the type of star that precedes it.

Types Of Supernova [NO MUSIC]

Lately there has been talk of a new largest galaxy, named Alcyoneus, which is said to boast a diameter of 16.3 million light years. But is that what's really being proposed in the original paper detailing the discovery? And if Alcyoneus is not the new largest galaxy, then how does it compare with the previous record holder IC 1101?

Alcyoneus - New Largest Radio Galaxy [NO MUSIC]

Ever wonder what it would be like to fly all the way to the edge of space? Well in this episode, we'll be doing just that. We will embark on a tour of our universe- venturing deep into the darkness, uncovering the most jaw-dropping landmarks along the way. This is our journey to the edge of the universe.

Journey to the Edge of the Universe - No Music

Our view of the cosmos is limited to the observable universe- the slice of space containing all the galaxies that can be seen from Earth. But what we perceive to be the edge of our universe is not the actual edge of the universe- with most scientists in agreement that more space lies hidden beyond what we're able to see. Last time out, we travelled to the very edge of our observable universe. But today, we will be going even farther, as we wade out into the darkness of the unobservable universe.

Beyond The Observable Universe - No Music

The Hubble Telescope has been our most profound window into the universe for more than 30 years. From imaging the interiors of beautiful, nearby nebulae, to revealing the secrets of the universe at large, we’ve seen glimpses of space our ancestors would’ve found hard to believe. And in today’s video, we will relive some of the telescope’s greatest successes as we recount some of Hubble’s greatest discoveries.

Hubble's Greatest Discoveries - No Soundtrack

On the darkest of nights, free from the glow of the moon and the haze of light pollution, a stunning, striking formation can be seen imprinted upon the sky. That imprint is our galaxy- the Milky Way. Our galaxy is a giant, which extends for hundreds of thousands of light years. But by measuring the motions and velocities of the stars in our neighbourhood, both their past and future trajectories can be extrapolated- revealing the history of the Milky Way.

History Of The Milky Way - No Soundtrack

Lately, there has been talk of a new largest black hole, named Phoenix A*, which is said to have a mass greater than 100 billion times the mass of the sun! This is much larger than the previous record holder, TON-618. But can we really rely on this prediction? And if not, then what is the largest black hole out there, and how do we know its true size? These are the questions we will answer in search of the universe's biggest black holes.

In Search Of The Largest Black Holes - No Soundtrack

The Earth, the blue planet. An ancient oasis of life suspended in the darkness of space. As rich and life-supporting as the Earth is today, it was once nothing more than a column of dust, dancing inside a scorched cyclone of stellar gas. And just how we as humans managed to emerge from this ancient dust makes up the topic of this video. So join us, as we wind the cosmic clock backwards almost five billion years, from you and I today, all the way back to the birth of the solar System, back to when Earth was nothing more than a burning, barren wasteland.

You Are Here (No Soundtrack)

How did Earth get its moon? Why is Mercury so close to the sun? Why does Uranus orbit on its side? The answers to all of these questions are the many collisions that ravaged the early Solar System.

Each of our neighbouring worlds bears scars which echo their violent past. And in this video, we will examine a number of the most significant collisions, which played a pivotal role in building up the Solar System as we know it today.

Collisions Of The Early Solar System - No Soundtrack

From studying the dusty surface of Mars, to plunging into the atmosphere of Venus, over the last 60 years, we've launched scores of probes into space on trajectories to visit each of the terrestrial planets. But for all the fascinating discoveries made on the way, humanity's journey towards the stars started out in a much darker place- a battlefront between the world's then two great competing superpowers. And in this first episode on my new series on probes, we will revisit this space race, and the major milestones on route to visiting each of the terrestrial planets.

Race to the Terrestrial Planets | No Soundtrack

Far beyond the reaches of the four rocky planets, we find our Solar System's showpiece worlds- the two gas giants, Jupiter and Saturn. As the two largest planets, both are tantalising targets for probes exploring the planetary neighbourhood. But both lie significantly farther from the sun than the Earth and its terrestrial neighbours. But in the early 1970s, the technology for deep space voyages was primed, and missions to both Jupiter and Saturn ensued.

Those missions make up the topic of our track today, in this second episode of our trilogy of Probes that Studied the Solar System.

Journey To The Gas Giants - No Soundtrack

Hi! I'm Sam, author of the YouTube channel SEA.
On this account you will find soundtrack-only versions of my recent videos.
Hope you like what you see, thanks for stopping by!

History Of The Milky Way - No Soundtrack

SEA

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