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Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology.

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This is an automated archive made by the Lemmit Bot.

The original was posted on /r/space by /u/Exr1t on 2025-07-13 12:13:42+00:00.

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The original was posted on /r/space by /u/SpaceDependo on 2025-07-13 12:09:10+00:00.

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The original was posted on /r/space by /u/BuddhameetsEinstein on 2025-07-13 11:29:10+00:00.

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The original was posted on /r/space by /u/maksimkak on 2025-07-13 08:53:45+00:00.

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The original was posted on /r/space by /u/J3RRYLIKESCHEESE on 2025-07-13 06:38:22+00:00.

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The original was posted on /r/space by /u/Doug24 on 2025-07-12 20:23:47+00:00.

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The original was posted on /r/space by /u/oliolikt on 2025-07-12 19:35:31+00:00.


Hey everyone

I recently launched a passion project called When Rockets Fly - a curated timeline of humanity’s space missions, from the first satellites to current and upcoming interplanetary probes.

So far, you can filter by mission type, destination, and space agency (only on desktop version though), and scroll through a starfield backdrop as you watch history unfold.

This is an ongoing side project, so I would like to hear your general thoughts and wishes. What can I add to the website? I am aware that not every single space mission is featured, but I am getting closer.

I’m genuinely grateful for any feedback or ideas you might have 🙏

Check it out: https://whenrocketsfly.com/ (filters are only accessible on desktop version)

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The original was posted on /r/space by /u/MattGrayYes on 2025-07-10 16:59:48+00:00.


The European Space Agency invited me to their mission control centre in Germany to find out what it takes to be a Satellite Operations Engineer working on their new Earth observation satellite, BIOMASS

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The original was posted on /r/space by /u/dem676 on 2025-07-12 12:42:16+00:00.

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The original was posted on /r/space by /u/lowlet3443 on 2025-07-11 09:21:16+00:00.

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The original was posted on /r/space by /u/VisualizingScience on 2025-07-11 11:45:18+00:00.

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The original was posted on /r/space by /u/maksimkak on 2025-07-11 17:44:03+00:00.


A moon exploration simulation with robots was conducted in a Jingbo Lake volcanic lava cave in China. Research indicates that there are considerable lava pipe systems distributed beneath the surfaces of the Moon and Mars,” according to China Central Television. Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by Steve Spaleta

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The original was posted on /r/space by /u/coinfanking on 2025-07-11 16:08:27+00:00.


A mystery interstellar object spotted last week by astronomers could be the oldest comet ever seen, according to scientists.

Named 3I/Atlas, it may be three billion years older than our own solar system, suggests the team from Oxford university.

It is only the third time we have detected an object that has come from beyond our solar system.

The preliminary findings were presented on Friday at the national meeting of the UK's Royal Astronomical Society in Durham.

"We're all very excited by 3I/Atlas," University of Oxford astronomer Matthew Hopkins told BBC News.

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The original was posted on /r/space by /u/donutloop on 2025-07-11 14:41:01+00:00.

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The original was posted on /r/space by /u/Flubadubadubadub on 2025-07-11 09:09:20+00:00.

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The original was posted on /r/space by /u/Goregue on 2025-07-11 07:02:29+00:00.

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The original was posted on /r/space by /u/chrisdh79 on 2025-07-10 23:24:11+00:00.

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The original was posted on /r/space by /u/ye_olde_astronaut on 2025-07-10 20:06:34+00:00.

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The original was posted on /r/space by /u/IEEESpectrum on 2025-07-10 16:00:10+00:00.


Hi Reddit!

My name is Evan Ackerman, and I’m a senior editor at IEEE Spectrum. I visited the NSF-DOE Vera C. Rubin Observatory for three nights in April, just before they captured their first photon, and wrote about it for our magazine: 

https://spectrum.ieee.org/vera-rubin-observatory-first-images 

Rubin recently shared its first look images with the world, and I’m super excited to be here with members of the Rubin science and engineering team to answer your questions!

From the summit:

William O'Mullane - Deputy Project Manager 

Ranpal Gill - Head of Rubin Communications for Construction 

From the base:

Marina Pavlovic - Commissioning Scientist 

From SLAC

Guillem Megias -  Active Optics Scientist 

From Princeton

Yusra Alsayyad - Deputy Associate Director of Data Management

Ask us about designing, building, and operating the observatory, how the 10-year Legacy Survey of Space and Time will work, all the science, what it’s like to visit, and (almost) anything else!

We will start answering the AMA at 5pm ET on July 10 2025.

Proof:

Ranpal and William from the summit

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The original was posted on /r/space by /u/haruku63 on 2025-07-10 13:34:13+00:00.


I just received the sad news of the passing of Eric.

He created the ALSJ in the early days of the WWW and it grew to an invaluable information source about the Apollo lunar landings. It inspired David Woods to do an Apollo Flight Journal (AFJ).

I joined Eric’s team of volunteers, his “Nailsoupers“ 25 years ago and he was always enthusiastic about corrections, additions and suggestions to improve the ALSJ and I’m proud to have left a few fingerprints in his work.

R.I.P. Eric

https://www.nasa.gov/history/alsj/

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The original was posted on /r/space by /u/Ms_Photon on 2025-07-10 13:24:21+00:00.


Before today, the CMB-S4 spanned 19 countries and 26 US states, and was/is responsible for building, deploying, and commissioning the most precise background radiation experiment ever made. These measurements enabled the search for signatures of primordial gravitational waves, probe the nature of dark matter and dark energy, map the matter throughout the Universe, and capture transient phenomena in the microwave sky. In short, we just lost a huge arm of cutting-edge science.

The sheer amount of data collected from this effort is simply unimaginable, and the current administration cut the science off at the headwaters.

https://cmb-s4.org/science/

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The original was posted on /r/space by /u/MaievSekashi on 2025-07-10 12:43:15+00:00.

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The original was posted on /r/space by /u/Piskoro on 2025-07-09 19:20:10+00:00.


Everybody probably knows that Voyager 1 is the farthest such object today, at 166 AU and rising from the Sun. But that wasn't always the case and at some point it gets fuzzy and I'll get to it.

Since the late 18th century that record was held by manned and unmanned balloons up to 15.2 km in 1893, then by the artillery shells of the Paris Gun in 1918 at 42.3 km, then V-2 rockets since 1942 at 84.5 km, in 1944 reaching space at 174 km, then a bunch of American-launched suborbital rockets first at 184 km in 1946 ending at Farside rockets reaching at least 3200 km in 1957, then Vanguard 1 satellite with an apogee of 3969 km,

Then the record was taken on January 2nd of 1959 by the Luna 1 probe which two days later performed a lunar flyby and entered heliocentric orbit, it probably reached roughly 2 AU after two years of slowly outpacing the Earth when it was at conjunction with the Sun. The other objects that left the Earth-Moon sphere of influence at the time, Pioneer 4, Ranger 3, and Venera 1 were too slow to catch up to its distance from the Earth in time.

But now we're entering a fog, maybe one of them beat the record shortly after, once they reached conjunction with the Sun. Or maybe one of the other objects, sent to heliocentric orbit after it, did. That being Pioneers 5-9, Ranger 5, Mariners 2-9, S-IVBs of Apollos 8-12 plus LM Snoopy, Luna 6, Venera 2, Marses 1-3, Zonds 2 & 3. Especially those headed for Mars might've taken the record, there was plenty of time for the orbits to align for it before...

Pioneer 10 in 1972, which was the first to leave the inner Solar System and reach the orbits of all the outer planets from Jupiter to Neptune. Then it was eventually outpaced by Voyager 1 in February 1998 in its distance from the Sun (though I have a hard time checking when it was farther from the Earth specifically, since the Earth is faster than either of them there might be some funny shenanigans happening here).

So if anybody has the knowledge, skills, and/or resources to fill in this timeline, you're more than welcome. This is my query for you. Plenty of the objects I mentioned have some of their orbital parameters easily findable, even if I don't know which way they're oriented, though some might be more difficult to figure out.

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The original was posted on /r/space by /u/675longtail on 2025-07-10 01:17:47+00:00.


https://nasawatch.com/congress/things-are-suddenly-looking-up-for-nasa-science

According to Politico Pro, “when asked Wednesday if a scheduled Senate markup of the White House’s NASA bill would restore science spending, Sen. Jerry Moran (R-Kansas) replied, “The answer is yes.”

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The original was posted on /r/space by /u/lee7on1 on 2025-07-10 00:43:13+00:00.

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