Search Results | nasa
Your search for "nasa" returned 854 results
How Radiation Works
science.howstuffworks.com/radiation.htm
Radiation is a loaded word. Believe it or not, not all radiation is bad for your health. Learn which radiation is deadly and which isn't deadly.
What the Stuff?!: 5 Reasons Space Exploration Matters to You
www.howstuffworks.com/videos/what-the-stuff/what-the-stuff-space-exploration-video.htm
Space exploration is cool, but it's also expensive. So why should we keep throwing all this money into orbit?
What is a keyhole satellite and what can it really spy on?
science.howstuffworks.com/question529.htm
On a television drama last week, the plot involved photos taken of a Russian missile silo, and the characters mentioned a "keyhole satellite." What is a keyhole satellite and what can it really spy on?
How much gold is there in the world?
money.howstuffworks.com/question213.htm
I recall hearing once that all of the world's gold could be formed into a cube measuring 18 feet by 18 feet on a side, or something like that. Is that true? If so, how much would it weigh and how much would it be worth?
'Pilot's Glory': Why a Rainbow Encircles an Airplane Shadow on Clouds
Very specific atmospheric conditions and just the right perspective are necessary to see the phenomenon.
Get Ready for the Quadrantids, the First Meteor Shower of the New Year
science.howstuffworks.com/quadrantids.htm
The Quadrantids are a short but powerful meteor shower that shows up in early January. How can you glimpse it?
How Atoms Work
science.howstuffworks.com/atom.htm
Atoms are in your body, the chair you are sitting in, your desk and even in the air. Learn about the particles that make the universe possible.
Behind the X Prize
science.howstuffworks.com/x-prize.htm
We know who won - top-runner SpaceShipOne. We know what the team receives for that accomplishment: $10 million and an obscenely gigantic trophy. But what about the story behind the contest? Learn about the rules, restrictions, red tape, test crashes, successful launches and the technological innovations that may get you into sub-orbit sooner than you think.
How Aliens Work
science.howstuffworks.com/space/aliens-ufos/alien-physiology.htm
Alien life forms would probably differ from those on Earth but still adhere to certain principles. Learn about astrobiology and the search for alien life forms.
How the Big Crunch Theory Works
science.howstuffworks.com/dictionary/astronomy-terms/big-crunch.htm
In the big crunch theory, the universe will stop expanding and start shrinking. Read about the big crunch and what it means for you and the universe.