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Your search for "telescope" returned 226 results
Neptune: An Ice Giant With Diamond Rain
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Neptune is the eighth planet from the sun and one of the coldest. Its supersonic winds are also the fastest in the solar system.
Can a planet float on water?
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The floating planet theory states that a planet that is light enough should be able to float on water. Learn about the floating planet theory.
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.
NASA's DART Crashes Into an Asteroid, On Purpose
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NASA's DART spacecraft hit its mark Monday, Sept. 26 after years of planning. The bullseye was asteroid Dimorphos. Here's what NASA hopes to learn now.
10 Reasons Why Space Exploration Matters to You
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Yes, we have some amazing inventions thanks to space exploration, and we're curious about life on other planets. But the cosmos also touches a deeper part of our psyches. Here are 10 reasons space exploration matters to you.
What Are Dark Matter and Dark Energy?
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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 Mirrors Work
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Mirrors are explained in this article from HowStuffWorks. Learn about mirrors.
Uranus: The Ice Giant on a Tilted Axis
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Uranus is the seventh planet from the sun and sits on an axial plane tilted at a jaw-dropping 97.7-degree angle. And yes, Uranus does actually stink.
Could 'Early' Dark Energy Explain the Mystery of the Universe's Expansion?
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Early dark energy, a form that may have existed a few hundred thousand years after the big bang, could help clarify the universe's rate of expansion.
How Solar Eclipses Work
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Solar eclipses are rare and amazing phenomena. Learn about what happens in a solar eclipse and how to observe one safely.