It looks like a mind-bender, but you have to look at the big picture. A really really big picture. If you can accept that 99.8% of the stars we can see with our naked eye are in our own galaxy, and that the stars in other galaxies appear as a couple of bright ones because they are that far away...
I've recreated one of the first experiments I did in Chemistry many times - Water electrolysis to split it into Hydrogen and Oxygen, and prove the existence of hydrogen with a burning splint that goes "pop" in the test tube. The Sun is a massive ball of hydrogen, that uses Nuclear fusion to turn...
Europa is a tricky subject from the life-sustaining point of view. It has water and oxygen, both essential components for life. However, its distance from the sun is an obvious impairment, as even the lowest forms of life and single-celled organisms need a good source of light. Warmth would be a...
Thoughts could never be faster than light. Brain signals are electricity, which are forced electrons, which have a mass of 1. Photons that make up light have zero mass as expressed previously. More mass = Reduced Speed Capabilities.
Plus we're on earth, not in a vacuum.
The lowest temperature, absolute zero, is the lowest because energy can only be condensed so much, but it can expand (I thought) infinitely, therefore there really should not be a cap on how high temperatures should reach.
I hadn't thought of that. I knew that a body of rock or metal had to be a certain size before its gravity shaped it into a sphere, but thinking of Jupiter's core as larger than Earth hadn't even crossed my mind. Thanks!
Isn't that true at any other point in the universe? Even on Earth we are looking very slightly in the past when we see with our eyes. Wouldn't your comment imply that we are close the "point" the big bang occured? Or am I missing the point entirely?
Light can bend because of the gravity of a black hole, I don't know if it actually contains it. Once the light's source is blocked, it stops, simply put.
So the electrons are orbiting so fast they're kept in a sort of perpetual "slingshot", in that the nucleus is attracting the electrons, but they can neither be completely attracted to, nor catapulted away from the nucleus because of their velocity?
I've only just realized the complexity of your second question, and I didn't quite answer fully. Light emitting from an object 9 billion light years away will inevitably send light out not just in our direction, however that light will keep on traveling long after it has reached us depending on...
An edge defines a point in which a dimensional change occurs. To say we were at an edge of the universe would be a ridiculous claim to make, as we can see other objects away from the Earth at a full 360 degrees. We might be, as some have claimed if you travel through the universe in one...
The universe doesn't just pop up into existence when it expands, it takes the matter inside it with it to a degree - We know this because the galaxies are moving further apart. No one really knows how the universe can still be expanding, as it was once smaller than the size of a dust particle.
I...