What's inside a blue supergiant star?
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Are any companies making space stations or is all focus on Mars?
Today's video is about Space Stations. \
What is the redshift of the Andromeda Galaxy.
Andromeda actually has a NEGATIVE redshift, meaning it is blue shifted or moving towards us instead of away from us. Here is my youtube video on the topic.
Why don't black holes swallow the universe?
Original Question I answered. Yes I tried to create a click bait headline. No, I am not apologizing. Sorry, not sorry. :-) https://www.quora.com/unanswered/If-black-holes-have-infinite-gravity-then-why-cant-black-holes-attract-every-object-in-the-universe-no-matter-how-far-the-object-is-If-the-gravity-is-infinite-then-the-gravitational-pull-would-be-infinite-right-1
What if we crashed Ceres into Mars?
What would happen if we crashed the dwarf planet Ceres into Mars. Listen to my thoughts below.
How can we see light extremely far away when the source only illuminates...
Light spreads out like a wave. Think, of ripples in a pond how they spread out and get more diffuse the farther away from the source. Think of a balloon and how it's opaque before it's inflated, but when you blow it up, it spreads out and you can see through it because it is stretched and less dense, similar principle with light. Unlike a balloon which will pop, light, will expand forever, until it is absorbed or reflected by an object. Here's my video explanation. The Original Question on Quora. https://www.quora.com/unanswered/How-come-we-can-see-a-source-of-light-extremely-far-away-when-the-source-only-illuminates-the-area-much-closer-to-it?
What is the most successful method of discovering exoplanets?
See the Original on Quora. Ask me questions here or through Quora for your own video answer. https://www.quora.com/What-method-has-successfully-detected-the-most-exoplanets/answer/John-DAdesky
If light is a wave, then can linear motion go faster than light?
Fun question, so you are today’s lucky winner of a custom video answer. Too Long didn’t watch: No. Nothing with Mass can achieve the speed of light. As an object with Mass approaches the speed of light, the amount of energy to move faster increases exponentially. c^2 Now, RELATIVE MOTION, can appear to exceed the speed of light. Two objects moving away from each other will appear, to each other, to be moving faster than light. But individually they can not exceed it from their own frame of reference. To the best of our understanding of the laws of physics, nothing can travel faster than light. NOTHING. Nothing with MASS, can travel at light speed. Light has no mass. One can not travel at the speed of light without becoming light. Okay, look, we can mathematically show it is possible to exceed the speed of light if we can warp space time before and behind the spacecraft without violating special relativity but that is NOT the craft moving Faster Than Light, it is the manipulation of SPA...