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Here is the video: you're an astronaut lost in space discovering things that humanity will never be able to (playlist) - YouTube
I'm an avid amateur astronomer that loves learning about our interstellar backyard. Here's a few facts about the pictures presented in the video with timestamps:
▨ 0:00 ─ We're looking at the bottom portion of the Great Orion Nebula. The closest stellar nursery to that of our own star system (i.e. the Solar System), currently young stars are being forged and created here. They will definitely be the home star to many planetary systems for the next several billion years to come. It's the brightest nebulae visible to the naked eye, just look for the constellation of Orion and it will be located under the 3 stars (i.e. the belt of Orion).
27:36 ─ Top portion of the Orion Nebula
36:46 ─ Central portion of the Orion Nebula
• Distance: 1.3 kly away
• Radius: 25 ly wide
• Age: 2 million years old
• Constellation: Orion
▨ 13:11 ─ This is a distant exoplanet called J1407b, famous for it's large ring system. Consisted of 30 rings, it's 200x larger than that of Saturn's rings. Gaps between the rings have indicated to home orbiting exomoons. Astronomers are expecting these rings to thin out and disappear over the next several million years. If to replace Saturn's rings, they would be visible from Earth naked eye.
• Distance: 434 ly away
• Radius: 90 million km wide
• Age: 16 million years old
• Constellation: Centaurus
▨ 22:15 ─ A familiar face in planetary observing, this is the Great Red Spot located on Jupiter. A giant storm bigger than the size of Earth that has been roaring for nearly 400 years and with winds going as fast as 400 km per hour. Don't be fooled by it's size, it's recorded that the size of the storm is shrinking at an alarming rate of 900 km per year. The 'circle' to the left is one of Jupiter's moon lo, which is casting a shadow over the Great Red Spot to the right.
• Planet: Jupiter
• Radius: 16,350 km wide
• Age: 357 years old
▨ 45:05 ─ This is the Andromeda galaxy, our neighbor galaxy. This galaxy spans a few moons across and can be seen naked eye in moderately dark skies with little light pollution. It is the largest structure a human can see naked eye from Earth, and much larger than that of our own galaxy spanning over 220 thousand light years across (our own Milky Way galaxy spans at nearly 110 thousand light years across). Light emitted from this galaxy is 2.5 million years old, that means the light you see from it today is equivalent of looking back in time when the first Humans were just emerging.
Fun fact: Our galaxy and the Andromeda galaxy are expected to collide and merge with one another in 4-5 billion years, with the new cliché name "Milkdromeda galaxy."
Fun fact: Andromeda was ordinarily discovered as a nebula and for hundreds of years it was considered as such, but it wasn't until the 1900s that it was indeed an entirely separate galaxy.
• Distance: 2.5 mly away
• Radius: 220 kly wide
• Age: 10 billion years old
• Constellation: Andromeda
▨ 50:17 ─ Not sure what this is, possibly just general stargazing within our own Milky Way galaxy. The dark areas are Dark Nebulas, which is a type of interstellar cloud that is very dense and can block visible light behind it. Those small groups of stars are called Star Clusters, concentrated spheres of suns equivalent to our own. Other than that, enjoy the stars.
▨ 55:53 ─ I have no idea what this is officially however, my take is that it seems to be a galaxy with the composition of other spiral and elliptical galaxies. The idea actually exists, but it's not as pretty as this image. We call a collection of galaxies 'superclusters' which are part of a local group within the Observable Universe. Superclusters span vast distances and we actually live in one called the Laniakea Supercluster, which is consisted of nearly 200,000 galaxies and is 250 million light years across.
▨ 01:06:28 ─ Finally, we have the Black Hole. A Black Hole is a region in spacetime where nothing can escape from it's immense gravitational influence, not even the speed of light. With enough mass in a small and compact area, you can indeed create a Black Hole. The glowing disk around the Black Hole is called the Accretion Disc, a superheated disc of gas and dust that spins around the Black Hole at immense speeds. The material must stay within the innermost stable orbit or doom themselves passing the 'Point of No Return' and eventually collapsing.
Fun fact: If a human were to fall pass the point of no return (i.e. the Event Horizon) they will undergo a process called spaghettification and be stretched down the thickness of an atom. Doesn't sound like a pleasant experience for anything that manages to fall into these amazing yet horrifying things.
─ Thanks for reading. Clear skies!
I can't explain how this made me feel... Wow...
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