r/spaceporn

Credit: Astronaut Anil Menon

On April 29, 2011, the crew of the space shuttle Endeavour filmed the spacecraft's external tank after its separation. It continued its trajectory before disintegrating over the ocean.

Credit: NASA
Edit: Milky Way

Link to the science release on NASA website

Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine."

Image data: NASA/JPL-Caltech/SwRI/MSSS
Image processing by Emma Wälimäki © CC BY

She wrote in her post

>Room with a view. Check out my new digs as I camp out in Dragon until our departure. With Crew-13’s arrival we have a very full house on the International Space Station. Luke is living in my previous crew quarters, and I’ve pitched a tent in Dragon.

Credit: Astronaut Jessica Meir

The Soviet Union put Sputnik, the world's first artificial satellite, into Earth's orbit. Sputnik contained a radio transmitter that sent back the “beep-beep-beep” heard around the world.

Image Credit: NSSDC, NASA

Credit Brian Martin

https://www.facebook.com/photo/?fbid=10237344373362188&set=gm.3111140569074668&idorvanity=2753479781507417

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Description from original post by ​Brian Martin

​Full Res https://www.instagram.com/p/DeDf-RzlJio/

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​SUPER Conditions as Southern California's dry heatwave continues and brings with it some amazing seeing even at less than 40 degrees up. I was determined to get this shot and it was not easy but I pulled it off. If the target was higher I think it could have been more clear. I resized this image to 2500x2500 from roughly 300x300.

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​HOW I DID THIS IMAGE:

Keeping my histogram at 30%. This keeps the Moons from blowing out. I focus the Moons. FPS 250 I shot consecutively 30 second shots and this is the maximum shot. You can appreciate how Io is in fact moving fast against Ganymede's surface background. This is because Io orbits much faster. On this capture, Io would appear to be the only one moving and both moons are moving in opposite directions.

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30" Custom DOB 3x Barlow with filter wheel Uranus C IR PASS 685 IR/UV cut ZWO ADC Software: Autostakkart 4 Astrosurface WinJupos Photoshop finish

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Simulation from stellarium

https://stellarium-web.org/skysource/Ganymede?fov=0.0021258&date=2026-10-03T12:23:44Z&lat=37.98&lng=23.74&elev=0​

The gegenschein, a faint glow of sunlight scattered back toward Earth by dust grains in the inner solar system, sits in Aquarius at the point directly opposite the Sun in this all-sky view.

Images of Helene taken by the Cassini spacecraft, with resolutions of up to 24 meters per pixel, show a landscape characterized by broad 2–10 km scale depressions with interior slopes no greater than 12°. These basins are likely the decayed remains of old impact craters.

Thin, elongated km-scale raised grooves trace the slopes of many of Helene's basins, likely representing mass flow features and indicating that the moon is undergoing active geologic processes such as mass wasting and erosion. Digital elevation models suggest that the grooves have a positive relief of between 50 and 100 meters. Helene has more than 70 craters, while it shows a bimodal appearance—the heavily cratered trailing hemisphere exhibits a crater density ten times greater than the smooth-looking leading hemisphere.

Credit: NASA / Jet Propulsion Laboratory / Space Science Institute