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#nasa

68 posts59 participants4 posts today
Public *
grobi

An Almost Everything Sky
* Image Credit & Copyright: Koen van Barneveld
[instagram.com/koenvanbarneveld]

Explanation:
This surprising sky has almost everything. First, slanting down from the upper left and far in the distance is the central band of our Milky Way Galaxy. More modestly, slanting down from the upper right and high in Earth's atmosphere is a bright meteor. The dim band of light across the central diagonal is zodiacal light: sunlight reflected from dust in the inner Solar System. The green glow on the far right is aurora high in Earth's atmosphere. The bright zigzagging bright line near the bottom is just a light that was held by the scene-planning astrophotographer. This "almost everything" sky was captured over rocks on Castle Hill, New Zealand late last month. The featured finished frame is a combination of 10 exposures all taken with the same camera and from the same location. But what about the astrophotographer himself? He's pictured too -- can you find him?
apod.nasa.gov/apod/ap201021.ht
apod.nasa.gov/apod/ap250423.ht
apod.nasa.gov/apod/ap250423.ht
apod.nasa.gov/apod/ap110123.ht
apod.nasa.gov/apod/ap240612.ht

astronomy.com/observing/captur
science.nasa.gov/resource/the-
eyes.nasa.gov/apps/solar-syste
nasa.gov/general/what-is-earth
science.nasa.gov/earth/earth-a
en.wikipedia.org/wiki/Cosmic_d
en.wikipedia.org/wiki/Zodiacal

apod.nasa.gov/apod/ap250423.ht

2025 April 23 A skyscape is shown over a rocky landscape. In the starry sky are the central band of our Milky Way Galaxy on the left, a meteor trail on the right, the dim band of zodiacal light in the center, and the photographer holding a light just below the center. The path of the light is shown as a bright streak in the bottom part of the frame. Please see the explanation for more detailed information. An Almost Everything Sky * Image Credit & Copyright: Koen van Barneveld Explanation: This surprising sky has almost everything. First, slanting down from the upper left and far in the distance is the central band of our Milky Way Galaxy. More modestly, slanting down from the upper right and high in Earth's atmosphere is a bright meteor. The dim band of light across the central diagonal is zodiacal light: sunlight reflected from dust in the inner Solar System. The green glow on the far right is aurora high in Earth's atmosphere. The bright zigzagging bright line near the bottom is just a light that was held by the scene-planning astrophotographer. This "almost everything" sky was captured over rocks on Castle Hill, New Zealand late last month. The featured finished frame is a combination of 10 exposures all taken with the same camera and from the same location. But what about the astrophotographer himself? He's pictured too -- can you find him? Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) NASA Official: Amber Straughn Specific rights apply.
#space#galaxy#astrophotography
Public
Dr. John Barentine FRAS

"Among the other changes that have occurred since that first image of the entire Earth 50 years ago is the amount of human development and activity on our planet's surface. Although not visible in these images of the daylight side of the Earth, other satellites monitor for lights visible on the dark side of our planet. These show dramatic expansions in the urban sprawl across the continents alongside the activity of shipping on the Earth's oceans."

bbc.com/future/article/2025042

The "Blue Marble" photograph of the whole Earth side-by-side with a new image taken 50 years later (Credit: Nasa)
BBC · How 50 years of climate change has changed the face of the 'Blue Marble' from spaceBy Katherine Latham
#NASA#BlueMarble#Earth
Public
Astro Hawk (Ian Kluft) 🚀🛰️

"Terminator Moon: A Moonscape of Shadows" is #NASA #astronomy picture of the day #APOD for 2025-04-22, photo by Rich Addis - Whether on Earth, the Moon or another planet, a "terminator" is the astronomical term for the day/night or light/shadow boundary when viewed from a distance. This image of the #Moon is a composite of multiple photos which eliminates terminators and enhances 3D appearance of surface features. apod.nasa.gov/apod/ap250422.ht

NASA astronomy picture of the day APOD for April 22, 2025 https://apod.nasa.gov/apod/ap250422.html NASA image caption: Terminator Moon: A Moonscape of Shadows Image Credit & Copyright: Rich Addis Explanation: What's different about this Moon? It's the terminators. In the featured image, you can't directly see any terminator -- the line that divides the light of day from the dark of night. That's because the featured image is a digital composite of many near-terminator lunar strips over a full Moon. Terminator regions show the longest and most prominent shadows -- shadows which, by their contrast and length, allow a flat photograph to appear three-dimensional. The overlay images were taken over two weeks in early April. Many of the Moon's craters stand out because of the shadows they all cast to the right. The image shows in graphic detail that the darker regions known as maria are not just darker than the rest of the Moon -- they are also flatter.
alternate image with names of lunar mare and craters
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