Author: NASA Science
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NASA’s Chandra Examines Milky Way at Arms’ Length
A new result using NASA’s Chandra X-ray Observatory shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This finding may lead astronomers to adjust their understanding of our home galaxy’s structure. A…
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NASA’s Chandra Reveals ‘Red, White, Blue’ Universe for US 250th
In celebration of the 250th birthday of the United States, NASA has unveiled four cosmic images from its Chandra X-ray Observatory rendered in red, white, and blue that represent the wonders of the universe the agency explores. The images are…
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The Battle for Sullivan’s Island
Marshy, sandy terrain and an impassable inlet helped colonial forces repel British forces during a pivotal battle on the barrier island near Charleston, South Carolina, on June 28, 1776.
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A Turquoise Tint for the Black Sea
Phytoplankton added a milky blue hue to the waters of the Black Sea and nearby waterways in spring and summer 2026.
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Playing the Moon Game
Apollo astronauts previewed their roles as lunar field geologists in Alaska’s Valley of Ten Thousand Smokes.
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Rising Waters Swamp Lake Naivasha
Relentless rains are threatening a lake in Kenya’s Great Rift Valley that has become a key hub in the global flower trade.
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Signs of Thaw in the Bering Sea
Drifting sea ice fragments near Alaska’s Saint Lawrence and Nunivak islands and colorful water around the Yukon Delta heralded the approach of the summer solstice.
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Tropical Storm Arthur
The first named storm of the 2026 Atlantic hurricane season brought intense rainfall and the threat of flash flooding to the U.S. Gulf Coast.
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El Niño Is Underway
Satellite observations of sea surface height indicated that the 2026 event continued to strengthen in early June.
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Low Water at San Carlos Reservoir
Drought and water releases drained the Arizona reservoir to levels that have led to widespread fish deaths.