Magazine Posts

Robert Zunikoff on Unsplash

NASA Astronomy Picture of the Day:

Oh what a tangled web a planetary nebula can weave. The Red Spider Planetary Nebula shows the complex structure that can result when a normal star ejects its outer gases and becomes a white dwarf star. Officially tagged NGC 6537, this two-lobed symmetric planetary nebula houses one of the hottest white dwarfs ever observed, probably as part of a binary star system. Internal winds flowing out from the central stars, have been measured in excess of 1,000 kilometers per second. These winds expand the nebula, flow along the nebula's walls, and cause waves of hot gas and dust to collide. Atoms caught in these colliding shocks radiate light shown in the featured false-color infrared picture by the James Webb Space Telescope. The Red Spider Nebula lies toward the constellation of the Archer (Sagittarius). Its distance is not well known but has been estimated by some to be about 4,000 light-years.

Southwest view of the Lutheran Fishermen's Church in Born auf dem Darß, Germany.

Radomianin, CC BY-SA 4.0, via Wikimedia Commons. View source.

Ju On on Unsplash

NASA Astronomy Picture of the Day:

What part of Orion is this? Just north of the famous Orion Nebula is a picturesque star forming region in Orion's Sword that contains a lot of intricate dust -- some of which appears blue because it reflects the light of bright embedded stars. The region's popular name is the Running Man Nebula because, looked at from the right, part of the brown dust appears to be running legs. Cataloged as Sharpless 279, the reflection nebula is not only part of the constellation of Orion, but part of the greater Orion molecular cloud complex. Light from the Running Man's bright stars, including 42 Orionis, the bright star closest to the featured image center, is slowly destroying and reshaping the surrounding dust, which will likely be completely gone in about 10 million years. The nebula spans about 15 light years and lies about 1,500 light years away. Jigsaw Nebula: Astronomy Puzzle of the Day

Photo by Robert G. Lyons (Robservatory)

The main altar of Santa Maria della Pace church in Brescia features the altarpiece Presentation at Temple by Pompeo Batoni. The tympanum sculptures are by Antonio Calegari. Celebrated as Candlemas in some places, this event in the life of Jesus is observed today in much of Eastern and Western Christianity.

This Photo was taken by Wolfgang Moroder. Feel free to use my photos, but please mention me as the author and send me a message. This image is not in the public domain. Please respect the copyright protection. It may only be used according to the rules mentioned here. This specifically excludes use in social media, if applicable terms of the licenses listed here not appropriate. Please do not upload an updated image here without consultation with the Author. The author would like to make corrections only at his own source. This ensures that the changes are preserved.Please if you think that any changes should be required, please inform the author.Otherwise you can upload a new image with a new name. Please use one of the templates derivative or extract., CC BY-SA 3.0, via Wikimedia Commons. View source.

Groundhog Day, is a popular North American tradition observed in the United States and Canada on February 2. The weather lore was brought from German-speaking areas where the badger (German: Dachs) is the forecasting animal. This appears to be an enhanced version of the lore that clear weather on the Christian festival of Candlemas forebodes a prolonged winter. As the tradition goes, if a groundhog emerges from its burrows on this day and sees its shadow due to clear weather, it will retreat to its den and winter will go on for six more weeks; if it does not see its shadow because of cloudiness, spring will arrive early. While the tradition remains popular, studies have found no consistent association between a groundhog seeing its shadow and the subsequent arrival time of spring-like weather. In the U.S , the most popular Groundhog ceremony is held at Punxsutawney in western Pennsylvania, centering on a semi-mythical groundhog named Punxsutawney Phil. Other cities in the United States and Canada also have adopted the event. More

Zdeněk Macháček on Unsplash

NASA Astronomy Picture of the Day:

Mars has put on a happy face. The Martian crater Galle is famous because it has internal markings that make it look like a face that is both smiling and winking. These markings were originally discovered in the 1970s in pictures taken by the Viking Orbiter. The Mars Global Surveyor (MGS) spacecraft that orbited Mars from 1996 to 2006 captured the featured picture. Happy Face Crater and its iconic features were formed by chance billions of years ago when a city-sized asteroid slammed into the Martian surface. All rocky planets and moons in our Solar System show impact craters, with the highest number of craters found on Earth's Moon and the planet Mercury. Earth and Venus would show the most, though, were it not for weather and erosion. Sky Surprise: What picture did APOD feature on your birthday? (after 1995)

Catacombs of Paris, France.

Diego Delso, CC BY-SA 4.0, via Wikimedia Commons. View source.

Vincent van Zalinge on Unsplash