
Why did NASA not see Atlas (the comet that is roughly 1/2 the size of the Sun that will come within 70 million miles of the Earth) before?
First, let’s get something out of the way: comet C/2019 Y4 (sometimes called ATLAS after the telescopes that found it) is not “half the size of the sun.” The comet’s…

What happens if you enter the Milky way galactic core?
The galactic core, i.e., the central bulge of the Milky Way, is a region very densely populated by stars. It is a dangerous place. Stars regularly get close…

Why can’t we make small atomic bombs?
I will give you a slightly different answer. “Small” atomic bombs are incredibly more dangerous than big ones. This is a 152-mm Russian nuclear artillery shell. The US…

Why is Poland so poor and still in the EU?
I am a French student, just over a month ago, I left my country to live 3 months in Poland as an erasmus trainee. France is one of…

What is the most dangerous creature on Earth for a submarine to encounter and why?
Without question these. Fruit flies. Submarines are massive, and made to withstand the huge force of pressure that acts on the hull at depth. No animal can externally…

What did Trump say to Melania during his swearing in a ceremony that caused her expression to change?
I watched several different videos that were taken at differing angles because I was so aghast at Melania’s expression change. trump turns around smiling and looking triumphant, and…

If Chinese had many larger armies than Europeans, why didn’t they try to conquer and enslave the planet like Europeans did?
There were three reasons for that. First, China is a large country. I don’t mean large, I mean large. Huge. Vast. Image 1. Map of Asia. As easily visible, China is huge. Almost…

Why do supermarkets in Japan have 2 different color shopping baskets?
It’s to combat a certain type of shoplifting. As the OP probably already knows, in Japan, it’s generally shoppers rather than the checkout person who do the transferring…

What will happen if a nuclear bomb is detonated in space?
We don’t have to speculate because, in typical early Atomic Age fashion, the US military tried it just to see what would happen. Thus, we have test shot…

How fast can a fighter jet fly across the United States?
Not as fast as you think. I’m a real fighter pilot (F-14), and the common belief that they’re lying about top speeds is backwards. The advertised “top speed”…