*pulls up glasses* According to Google: scientists say that the atmosphere ends at the Kármán line, 100 km (62 miles) above sea level. That's where sky is said to become space, which is what people mean when they talk about 'the edge of space'. Beyond that line, there is not enough air to create drag. So that should answer your question. The sky does in fact end.
How do you walk down the stairs? Like I’m genuinely curious. Do we all walk down the stairs differently? What foot goes first? How long do you wait between steps and do you have a pattern?