Search Results | hubble space telescope
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How Black Holes Work
science.howstuffworks.com/dictionary/astronomy-terms/black-hole.htm
A black hole occurs when a massive star dies -- its enormous mass implodes and becomes so heavy that it bends space. So how do astronomers detect something that they can't see?
Could I see a flashlight beam from Earth on the moon?
science.howstuffworks.com/question441.htm
If I was on the moon and the earth was black (no lights were on) and a flashlight was turned on facing the moon, would I see the light? If I couldn't, would there be any way to detect any residual matter that came from the light on Earth or does light die after a certain distance?
NASA's 10 Greatest Achievements
science.howstuffworks.com/ten-nasa-achievements.htm
NASA's 10 greatest achievements range from technical feats to displays of human ingenuity. Learn about NASA's 10 greatest achievements.
How Long Does the Once-dimming Star Betelgeuse Have Left?
science.howstuffworks.com/betelgeuse.htm
Star-gazers gasped when they saw how much Betelgeuse dimmed in 2019 and the reason wasn't clear. Even though it's back up to full strength, how long will it be before it explodes? We haven't seen a supernova in over 400 years.
How do I build a telescope at home?
science.howstuffworks.com/question568.htm
How do I build a telescope at home? Use these step-by-step instructions.
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?
What Are Dark Matter and Dark Energy?
science.howstuffworks.com/dictionary/astronomy-terms/dark-matter-dark-energy.htm
Dark matter and dark energy are part of the fabric of the universe. How much do scientists know about dark matter and dark energy?
How many teaspoons are there in a cubic light year?
science.howstuffworks.com/dictionary/astronomy-terms/question208.htm
How many teaspoons are there in a cubic light year?
Types of Galaxies: Why Galaxies Come in Different Shapes
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Galaxies are complex systems held together by gravity, but the shapes of different types of galaxies are a result of gravity along with rotation speed and time.
What Is the Coldest Place in the Universe?
science.howstuffworks.com/coldest-place-in-universe.htm
The coldest place in the universe exists some 5,000 light-years from Earth. Do you know where it is and what it's called?