Recent comments in /f/space

54yroldHOTMOM t1_j9s8zdu wrote

Reply to Space Ripples????? by KeyahnDP9

There is the (mem)brane theory. Where “infinite”? Universa are layered closely together like membranes not touching. The Big Bang could have been two layers touching which resulted in a massive explosion/exchange of energy between two universes. Which could have been the latest big bang. Maybe not the first, maybe not the last.

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WULTKB90 t1_j9s8uzm wrote

Reply to comment by PyrorifferSC in Dark energy faster than speed of light? by No_Adhesiveness_6821

Relative distance does change, but the galaxies aren't being pushed apart, rather more space is appearing between them, like a balloon being inflated, if you put 2 dots on the balloon then blow it up the dots don't move, rather the space between them grows, so they aren't moving faster than the speed of light, it is only faster when observed relative to an observer with enough distance.

When it comes to distances far enough out that they are receding away from an observer faster than light can travel the information from them is lost to the observer, without FTL travel the observer could never reach those locations so no information is traveling faster than the speed of light.

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tripleint3gral t1_j9s6jan wrote

Reply to Help! My friend is convinced that the Earth is hollow and we are living inside of it! by YeetFleekMasterOfRap

Sure, I'd be happy to help. The idea that the Earth is hollow is a long-standing pseudoscientific belief that has been thoroughly debunked by scientific evidence. Here are some points that you can use to counter your friend's arguments:

  1. Seismic Waves: Earthquakes generate seismic waves that travel through the Earth's interior. Scientists use these waves to map the Earth's interior structure. If the Earth were hollow, seismic waves would behave very differently than they do. In fact, seismic waves provide strong evidence that the Earth is a solid sphere, with a dense iron core and several layers of rock surrounding it.

  2. Gravity: Gravity is a fundamental force that is determined by the mass and density of an object. The Earth's gravity field has been extensively measured and mapped, and it is consistent with the Earth being a solid sphere with a dense core. If the Earth were hollow, the gravity field would be significantly different.

3.Plate Tectonics: Plate tectonics is the scientific theory that explains how the Earth's crust is broken into plates that move around on the Earth's surface. Plate tectonics also provides evidence that the Earth is solid, as the movement of these plates is driven by the circulation of molten rock in the Earth's mantle.

I hope these points are helpful in your debate. It's important to remember that science relies on evidence and experimentation to build understanding, and that pseudoscientific beliefs should always be approached with a healthy dose of skepticism.

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Amaranth_devil t1_j9s026a wrote

Reply to comment by sailorlazarus in Help! My friend is convinced that the Earth is hollow and we are living inside of it! by YeetFleekMasterOfRap

You misunderstand me completely, I'm pretty familiar with the things you are saying. I was just stating that the theories like hollow earth, etc. Would be pretty cool if they were true. Trust me, i am well aware of how wondrous what we know of the universe is and how we've barely scratched the surface of our understanding of it.

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