If You Left Earth the Moment You Were Born, How Long Would It Take to Reach the Next Galaxy

If You Left Earth the Moment You Were Born, How Long Would It Take to Reach the Next Galaxy?

In this video, you'll understand how far the nearest galaxy actually is, what you would travel through on the way there, and why the answer depends on questions most people have never thought to ask.

You'll see:

Why the nearest galaxy is not Andromeda, and what is actually closer to Earth
The Sagittarius Dwarf Galaxy, discovered only in 1994, that may already be merging with our own
Why the Milky Way has no real edge, and what escaping it actually costs in time
The Oort Cloud: the true outer boundary of our solar system, extending two light-years in every direction
What Voyager 1 found when it crossed into interstellar space in 2012
What the space between stars actually contains, and why "empty" is the wrong word
How Andromeda is approaching at 245,000 miles per hour and what happens when it arrives
The intergalactic medium: one atom per cubic meter, for millions of years of crossing
Why some galaxies are already permanently unreachable, receding faster than any signal can follow
The answer: at light speed, 160,000 years. At Voyager's speed, 2.8 billion years.

Watch also:
https://youtu.be/awULvSf02CY

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00:00:00 You Were Born Moving
00:02:28 The Question: What If You Aimed Toward the Nearest Galaxy?
00:04:11 The Nearest Galaxy Is Not Andromeda
00:07:08 How Hubble Proved Andromeda Was Another Galaxy
00:09:36 The Large Magellanic Cloud: The Real Nearby Galaxy
00:12:30 The Small Magellanic Cloud and the Magellanic Stream
00:14:15 The Sagittarius Dwarf Galaxy Inside Our Galaxy
00:17:13 The Milky Way Is Eating Sagittarius
00:20:09 The Galaxy We Still Cannot Define
00:23:03 Which Galaxy Is Actually Nearest?
00:24:47 The Milky Way Has No Edge
00:27:05 The Galactic Disc Is Not the Whole Galaxy
00:29:01 The Stellar Halo Around the Milky Way
00:31:01 The Dark Matter Halo
00:34:26 What It Really Costs to Leave the Milky Way
00:36:43 The Sun Never Lets Go
00:39:10 Earth Escape Velocity and Solar Escape Velocity
00:41:11 The Oort Cloud: Where the Solar System Actually Ends
00:45:01 Voyager and the Edge of Interstellar Space
00:47:25 The Space Between Stars
00:50:19 The Local Bubble We Already Live Inside
00:52:27 The Temperature That Has No Temperature
00:55:10 You Cannot See Your Own Galaxy
00:57:17 The Forbidden Zone at the Galactic Center
00:59:36 The Galaxy Has Thickness in Time
01:01:28 The Local Group: Our Galactic Family
01:03:32 Andromeda Is Moving Toward Us
01:05:39 The Future Milky Way-Andromeda Merger
01:08:47 Intergalactic Space: Almost Nothing for Millions of Years
01:11:03 The Cosmic Web
01:13:34 The Duration That Changes Everything
01:15:55 The Observable Universe and Its Limit
01:18:45 The Coincidence of Being Here Now
01:21:56 What the Journey Would Actually Look Like
01:24:53 Crossing the Solar System at Light Speed
01:26:16 Leaving the Milky Way’s Disc and Halo
01:28:01 Approaching the Large Magellanic Cloud
01:30:01 Seeing the Milky Way from Outside
01:31:34 You Have Never Stopped Moving
01:34:03 What the Journey Really Teaches You
01:37:08 The Final Answer: How Long Would It Take?
01:38:42 Conclusion — You Were Born Moving

#SpaceDocumentary #OurUniverse #NearestGalaxy

Видео If You Left Earth the Moment You Were Born, How Long Would It Take to Reach the Next Galaxy канала Our Universe | Space