Despite all the chaos that occurs on Earth, the dangers of the volatile galaxy we reside in are often forgotten. From space rocks traveling at thousands of miles per hour to black holes capable of tearing apart our planet, it’s not something we want to dwell upon. But what would happen to the human body in the face of these wild astronomical phenomena? Experts have provided insights to MailOnline on five gruesome deaths that could befall us due to various astronomical occurrences, including being swallowed by a black hole or a collision with another galaxy.
Before we face these dangers, humans could be responsible for their own destruction by developing dangerous AI or emitting greenhouse gases. The first astronomical phenomenon we will explore is the death of the sun. Experts estimate that our sun, which is approximately 4.5 billion years old, has another 4 or 5 billion years left in its lifespan. When it eventually dies, it will expand into a red giant, engulfing Mercury and Venus, and possibly the Earth too. Although humans are unlikely to be around to witness this event, immediate effects would be felt, and we would perish quickly due to the cold. Experts believe that Earth would resemble the era of “snowball Earth” that occurred 700 million years ago, lasting 50 million years, with the entire planet frozen and the sea covered in one-kilometer thick ice from pole to pole.
Next, we consider the terrifying idea of Earth falling into a black hole. These regions of spacetime possess such intense gravitational pull that even light cannot escape. Black holes are known for tearing apart stars, consuming anything that comes too close, and even holding light captive. In the event of Earth entering a black hole, the gravitational force would stretch our bodies into the shape of spaghetti until we were reaped apart. Although the chance of this occurring is slim because even the closest black hole, Gaia BH1, is 1,600 light years away from Earth.
The Milky Way galaxy is on a collision course with another galaxy named Andromeda, which is currently 2.5 million light years away. Both galaxies possess gravitational attraction and will merge to form one new super galaxy, “Milkdromeda,” in around four billion years. One potential danger of such a merger could be a collision between our sun and another star, which could affect Earth’s orbit and cause us to escape the solar system, resulting in a slow death by freezing or cooking due to the change in distance from the sun.
Lastly, a massive asteroid impact could have catastrophic effects, such as causing the extinction of the dinosaurs 66 million years ago. The Chicxulub rock, which was around six miles in diameter, released a massive dust and soot cloud that triggered global climate change, wiping out 75 percent of all animal and plant species. To understand what an asteroid is, it’s a large rock left over from collisions in the early solar system, and most are located in the Main Belt between Mars and Jupiter.
In conclusion, while humans are responsible for many dangers that could lead to their extinction, they also reside in a galaxy full of volatile phenomena. Although the chances of many of these events occurring are slim, it is important to remember the potential dangers they pose and the importance of continued exploration and discovery in order to better understand our universe and prepare for any future hazards.
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