Space & Astronomy
Exploring "Why" questions about Space & Astronomy
480 articles
Why hasn’t man set foot on Mars yet?
> We got a bunch of robots up there, and we've walked on the moon, so it can't be too far off. This seems like a false assumption. The step from being able to send robots to creating a spaceship ca
Why is mercury harmful for us?
1. Inhibits DNA repairing 2. Alters the ability of cell membranes to select what materials pass through them.
why does a word start to sound weird when heard or said too many times?
My guess is because the meaning of the word is no longer what's coming to mind when you hear it instead it's the actual sounds put together that make it which you don't normally think about.
Why are there no long exposure/astrophotography photographs taken from the Moon or Mars?
Why go to Mars when you can just take a picture from orbit? The Hubble telescope avoids light pollution and atmospheric interference, while being in a much more convenient place to get it, and then co
Why, with the NFL being Number 1 in terms of revenue; are superstar players’ contracts almost always trumped by that of MLB and the NBA?
Because there are 45 guys on an NFL roster (plus practice squad). There are a lot fewer players in every other sport. So the money available for salaries is being divided by a variable number of playe
Why is a super blue blood moon so rare and why are the time between them so different.
Its a combination of obscure factors that need to sync up. A super moon is when the moon is full or close to and at its closest point. There are 3-4 full moons per year that would qualify for this A b
Why is it that storage devices have less space than what they claim? (a 32GB iPod touch has 28.5GB of useble space)
There are two ways of measuring the popular SI prefixes Giga- and Mega-. One way is using base 10. In this way, Mega- would be 10^6, and Giga- would be 10^9.
Why do large earthquakes always end up being downgraded? What is it about the initial measurement that’s so inaccurate/misleading?
The initial reports are often from only a few monitoring stations. A small sample size may result in inaccurate conclusions, but with more time, data from other monitoring stations can be added to get
Why it is easier to see something in the dark with my peripherals than it is while staring directly at it.
The peripheral vision is more sensitive to movement and contrast. This trait was formed as a way to catch predators trying to sneak up on you. This might have something to do with it.
Why is SpaceX attempting to land a Rocket on a drone ship?
They're trying to develop a rocket that can land vertically and be used again. Due to laws regarding airspace and (mainly) safety regulations, they can't try this over land, so they built a barge out