How Does Space Work?
Space, the vast expanse beyond Earth's atmosphere, operates under distinct physical laws compared to our planet. It's a near-perfect vacuum, virtually devoid of matter and characterized by extremely low pressure. This lack of matter has crucial implications.
One key characteristic is the absence of sound. As noted in multiple sources (Space.com and WDWMAGIC), sound waves require a medium, such as air molecules, to travel. In the vacuum of space, the sparse distribution of molecules prevents sound transmission.
Space Travel and Propulsion
Space travel, as discussed on Reddit (r/battletech, r/LancerRPG), relies on principles of physics, often involving achieving escape velocity to overcome Earth's gravity. Different methods exist, ranging from chemical rockets to more advanced propulsion systems. Jetpacks, as explained on Space Exploration Stack Exchange, function by expelling gas, generating thrust according to Newton's Third Law.
Thermal Control
Maintaining spacecraft temperature is crucial, requiring thermal control systems (Space Exploration Stack Exchange). Radiators dissipate heat into the cold vacuum of space, effectively cooling the craft.
Expansion of Space
The expansion of the universe (Reddit r/space) is a complex topic best described by professionals. NASA (NASA Science) is exploring this phenomenon through advanced telescopes like the Nancy Grace Roman Space Telescope.
