How do Hubble images get their vivid colors and subtle shading?
Features
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Hubble Turns 25
Breathtaking images, groundbreaking science, and a demonstration of humankind's ability to work in space have made Hubble a cultural icon for a quarter of a century.
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Why Does the Aurora Flare Up?
The spectacular auroras that circle Earth's geomagnetic poles and burst with colorful displays during geomagnetic storms have mystified humanity for millennia. Now scientists are uncovering their secrets.
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Los Angeles Gets Serious About Preparing for the “Big One”
A large earthquake in southern California could devastate Los Angeles. To help reduce the city’s risks, one scientist spent last year working in the LA mayor’s office.
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Human and Robotic Missions: To the Moon Again and Beyond
Robotic probes could help us collect samples from the Moon, potentially revealing the origins of our solar system.
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How Robotic Probes Helped Humans Explore the Moon—And May Again
Robotic probes—including Ranger VIII, launched 50 years ago this week—paved the way for humankind’s giant leap to the Moon. This history may help guide future plans for lunar exploration.
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Two- and Four-Year Colleges Team Up to Support Science Students
Faculty from community colleges play increasingly important roles in promoting science, technology, engineering, and math. What can faculty from four-year colleges and universities do to collaborate?
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Urbanization and Air Pollution: Then and Now
Analysis of decades of mitigation efforts in Los Angeles demonstrates that air quality in megacities can be greatly improved.
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Elders Recall an Earlier Tsunami on Indian Ocean Shores
Legacies of the 2004 Indian Ocean tsunami include recent interviews with lucid eyewitnesses to an obscure disaster in 1945. The accounts attest to coastal hazards in Oman, Iran, Pakistan, and India.
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Coastal Fog, Climate Change, and the Environment
To climate scientists, marine fog's physical opacity symbolizes how much remains to be discovered about the atmospheric phenomenon.