/r/space

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Share & discuss informative content on:

  • Astrophysics
  • Cosmology
  • Space Exploration
  • Planetary Science
  • Astrobiology

ABOUT r/space

Share & discuss informative content on:

  • Astrophysics
  • Cosmology
  • Space Exploration
  • Planetary Science
  • Astrobiology

UPCOMING LAUNCHES

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SUBMITTING LINKS

Please use original sources for content wherever possible. Please limit yourself to no more than 5 submissions per 24 hours.

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  • Informative high-quality articles, news & videos
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Exception: Twitter links are allowed only for breaking news by official sources. Examples:
1. Pluto flyby announcements by NASA
2. SpaceX launch coverage by SpaceX

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  • SUBMITTING IMAGES & GIFs

    Only allowed on Sundays UTC. Short videos without meaningful audio content qualify as GIFs.

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    • Include information about the subject, equipment, processing, and name of the photographer

    • If you are the photographer do not include additional demographic information, the image should stand on its own merit

    • Recommended subreddits: r/spaceporn, r/astrophotography & r/astronomy for images and r/spacegifs for GIFs.

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    • Memes/low quality images
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    SUBMITTING A TEXT POST

    Straightforward questions (who/what/where) belong to the Weekly Space Questions thread (pinned at the top)

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    • Open-ended questions that promote discussion
    • Highly recommended subreddit: r/askscience

    Not Allowed

    • ELI5/PSA styled posts
    • Posts that only state your opinion and don't engage the community

    COMMENTS

    Remember the Human

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    /r/space

    27,048,789 Subscribers

    12

    4K Earth Timelapse

    1 Comment
    2024/12/02
    16:34 UTC

    0

    Could GLP-1 agonists be used to curb food cravings and ration food during long duration interplanetary space missions?

    8 Comments
    2024/12/02
    14:51 UTC

    0

    What if a waffle inspired a futuristic city on Mars?

    7 Comments
    2024/12/02
    14:37 UTC

    6

    Understood that the earth is in orbit traveling around galaxy. However, what is out there in our path? Do we know what the conditions are like in the direction that we are travelling? If so, are there any significant differences coming our way in a few centuries, millennium, or million or so years

    19 Comments
    2024/12/02
    13:03 UTC

    1

    Question about observable universe and cosmic microwave background

    Was just watching a Brian Cox interview and had this question

    Astronomers talk about the "observable universe" and imply there is stuff so far out there that light from those objects hasn't had enough time to reach us yet. When some of the first images from JWST were published there was some focus on highly red shifted galaxy that now holds the record for being the furthest away from our perspective, something like 14 billion light years away. This implies there's a 14 billion-ish lighter bubble around earth of which we can observe(?)

    My question is, assuming the CMB is at the outer most edge of the universe how can we see it if it's outside our observable bubble?

    42 Comments
    2024/12/02
    11:19 UTC

    0

    How to forecast northern lights

    Looking to travel to Fairbanks next year. Watching moon cycles but struggling to find KP predictions for 45-60 days out.

    Adding 27 days to recent spikes is the only method we can think of to forecast. Is that even valid or is there a better way?

    8 Comments
    2024/12/02
    03:32 UTC

    689

    Mars and Titan

    18 Comments
    2024/12/01
    23:29 UTC

    0

    And we still have to believe we are alone?

    Maybe we are too aggressive or uninteresting or something. So many stars and we are alone?

    31 Comments
    2024/12/01
    22:06 UTC

    622

    NGC 2359 - "Thor's Helmet"

    • Celestron C8 on AVX mount
    • 41x 300s L-ultimate
    • 22x 60s iruv cut
    • Flats, Darks, Darkflats
    • Split channel, align, and pixelmath recombination
    • blurX, NoiseX, StarX
    • Spcc for stars
    • Statistical stretch on narrowband
    • Dark structure enhancement
    • Pixelmath to screen stars back in
    • Bortle 4 at 41° N latitude
    11 Comments
    2024/12/01
    22:05 UTC

    31

    Drove out to the Valley of Fire to take some pictures last night

    2 Comments
    2024/12/01
    21:21 UTC

    54

    The first two of the ten SRB segments of SLS for Artemis 2 on mobile launcher 1 inside the VAB

    Image credit: NASA/Glenn Benson

    4 Comments
    2024/12/01
    19:51 UTC

    43

    Orion molecular cloud complex

    2 Comments
    2024/12/01
    19:43 UTC

    68,255

    The moon passed between Nasa's Deep Space Climate Observatory and the Earth allowing this rare pic showing the dark side of the moon

    2039 Comments
    2024/12/01
    19:21 UTC

    107

    IC 1805 - The Heart Nebula captured with my Nikon D5300

    I'm impressed with the amount of detail the L-extreme filter is able to pull out of this nebula. I've shot this target before but haven't been able to produce as clean an image until now. A real game changer!

    Equipment:
    Camera: Nikon D5300 (Full Spectrum)
    Telescope: William Optics ZenithStar 61 II
    APO with Field flattener
    Filter: Optolong L-extreme
    Guide Camera: ZWO 120mm mini
    Mount: Skywatcher Star Adventurer GTi

    Acquistion:
    Shot in Bortle 5
    -Lights: 50x300
    -Flats: 100
    -Bias: 100

    Processing:
    -Stacked and stretched in Siril
    -Additional stretching in Photoshop

    2 Comments
    2024/12/01
    18:33 UTC

    20

    A Bright meteor by Jupiter. Geminids 2023

    0 Comments
    2024/12/01
    17:22 UTC

    7

    All Space Questions thread for week of December 01, 2024

    Please sort comments by 'new' to find questions that would otherwise be buried.

    In this thread you can ask any space related question that you may have.

    Two examples of potential questions could be; "How do rockets work?", or "How do the phases of the Moon work?"

    If you see a space related question posted in another subreddit or in this subreddit, then please politely link them to this thread.

    Ask away!

    37 Comments
    2024/12/01
    17:00 UTC

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