The Greatest Threats to Civilization on Earth

The Greatest Threats to Civilization on Earth
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A compilation of ‪@astrumspace‬ videos exploring planetary-scale natural disasters, from volcanoes and cyclones to solar eruptions and supernovae. What are the greatest dangers we face on Earth?

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0:00 Biggest volcano eruption seen from space: Tonga 2022
8:35 Aftermath of the 2024 Noto Japan earthquake
20:04 Ball lightning: What is it that so many people have seen?
31:02 How the Australian wildfires developed
37:58 What would a supernova do to Earth?
51:52 Do wildfires create feedback loops?
1:05:06 Coronal mass ejections: Could the Sun destroy our way of life?
1:30:40 We will be the last civilization on Earth

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26 Comments

  1. Ive seen ball lightning i think. I was driving down the highway one evening. There were some occasional lightning flashes way off in the distance but no rain. The ground was dry. As im driving all of a sudden to my left about 100 yards away a ball of blue light appeared out of nowhere. It was about the size of the local weather ball and it looked perfectly spherical. I was in the middle of nowhere and It was just hovering by the tree line. As i was approaching it going about 60 it started to shrink and fade out. About 20 yards away it became just a small pin point then it exploded. I had my windows shut with the ac going and it still made my ears ring. It sounded like when a transformer goes out and as it exploded i saw what looked like bits of light shooting off in all directions. Never in my life have i ever seen anything like this.

  2. Sulphuric acid is reflective because it strongly attracts water vapour to make tiny droplet particles, i.e. an aerosol. But it’s so widely distributed in the stratosphere by the Dobson Brewer circulation that when it comes down in rain the acidity is negligible. Microbes soon get to work extracting the nutrients from the ash particles.

  3. What if life was spread across the universe by supernovae? One may suspect that all matter from a life-giving system would be sterilized, however some life would be shielded. I would bet colonies of tardigrades and other extremophile microbes would survive in enveloped alcoves inside asteroids, sending life all over the galaxy. Think about it: If life started on one of the planets orbiting one star gone supernovae in one of the infrared galaxies seen by the JWST, life would have spread across the entire cosmos! I look at those galaxies and think, "I'm probably related to someone there."

  4. Matthew 24:29-31 KJV
    Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken: [30] And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory. [31] And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.

  5. Revelation 6:12-17 KJV
    And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood; [13] And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind. [14] And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places. [15] And the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man, hid themselves in the dens and in the rocks of the mountains; [16] And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb: [17] For the great day of his wrath is come; and who shall be able to stand?

  6. With regard to the earthquake machine allowing architects to design buildings that are more likely to survie an earthquake… MONUMENTAL WASTE OF MONEY. There are literally temples in JAPAN that have stood for centuries and have survived every earthquake UNSCATHED. Lets just ignore CENTURIES of expertise on building earthquake-proof buildings and get a HUGE GRANT to "study" the problem.

  7. Wouldn't it have been too late 4 days ago then? Such a title just makes me want to leave a nasty comment and not even watch your video. Good job, content creator. Igmo.

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