How far is a light year? About 9.46 trillion km or 5.88 trillion miles. See the IAU definition, light-travel times to the Moon and Andromeda, and parsecs.
Space
Health
How many grams of protein in an egg? USDA data puts a large egg at 6.3 g. See protein by egg size,
Environment
Tidal wave vs tsunami: NOAA says tsunamis come from undersea quakes, not tides. See how tsunamis, storm surge and Great Lakes seiches
Health
What causes high cholesterol? NHLBI and CDC sort the causes into lifestyle, genetics and medical conditions so you can see which ones
Environment
Compare the five Great Lakes by surface area, depth, volume and retention time using EPA figures, and see why Superior
Environment
A seiche (pronounced “saysh”) is a standing wave that sloshes back and forth inside an enclosed or semi-enclosed body of
Environment
Thermal pollution is the degradation of water quality caused by a significant change in the ambient temperature of a natural
Community & Culture
The Great Lakes basin is home to dozens of Indigenous nations whose connections to these waters predate European contact by
Environment
Lake Erie’s western basin experiences harmful algal blooms (HABs) each summer, driven primarily by phosphorus-laden agricultural runoff entering the lake
Cross-border trade between Ontario and the Great Lakes states of Michigan, Ohio, New York, and Pennsylvania represents one
The Great Lakes region hosts one of North America’s most significant and growing wind energy sectors, driven by
The residential real estate market in Hamilton, Ontario, one of the largest cities in the Great Lakes region,
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