View at EarthSky Community Photos. | Richard Witkowski captured the aurora storm on May 10-11, 2024, from Indiana Dunes National Park. It was surely one of the best night sky events of this past year. Thanks, Richard! So how about 2025? We can’t predict the next auroral display, but we can provide a preview of … Read more
View larger. | The shortest day is at the solstice. But many are surprised to learn that the latest sunrises come days or weeks after the solstice. This map shows the number of days between earliest sunset and latest sunrise, for various latitudes. And it shows the dates of these events. When is your latest … Read more
Sundial at Adler Planetarium in Chicago. A sundial can be used to measure the interval from one solar noon to the next. Earth’s longest days, from noon to noon, happen in December. Image via Wikimedia Commons (CC BY-SA 4.0). What is a day? You might casually talk about a day as a period of daylight. … Read more