supernova.place
  • Communities
  • Create Post
  • Create Community
  • heart
    Support Lemmy
  • search
    Search
  • Login
  • Sign Up
Zerush@lemmy.ml to Science@lemmy.ml · 2 个月前

“The models were right”: astronomers find ‘missing’ matter

www.esa.int

external-link
message-square
16
link
fedilink
56
external-link

“The models were right”: astronomers find ‘missing’ matter

www.esa.int

Zerush@lemmy.ml to Science@lemmy.ml · 2 个月前
message-square
16
link
fedilink
Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the Universe’s ‘missing’ matter, addressing a decades-long mystery.
  • ...m...@ttrpg.network
    link
    fedilink
    arrow-up
    1
    ·
    2 个月前

    deleted by creator

    • 𝕽𝖚𝖆𝖎𝖉𝖍𝖗𝖎𝖌𝖍@midwest.social
      link
      fedilink
      arrow-up
      2
      ·
      2 个月前

      The Canis Major Dwarf Galaxy is only 25,000 ly from Earth. Assuming constant acceleration, and sufficient technology to protect and keep things running for all that time - no mean feat - reaching a substantial percentage of light should make that reachable within a hundred or so thousand light years, even with a flip and slow-down halfway.

      Seque 1 is only 75k ly.

      Andromeda is much farther; I didn’t catch it in the article, but I got the impression the strands were identified between the more local clusters.

      • ...m...@ttrpg.network
        link
        fedilink
        arrow-up
        2
        ·
        edit-2
        2 个月前

        deleted by creator

        • 𝕽𝖚𝖆𝖎𝖉𝖍𝖗𝖎𝖌𝖍@midwest.social
          link
          fedilink
          arrow-up
          1
          ·
          2 个月前

          Well, there go my vacation plans.

    • calcifer777@lemmy.ml
      link
      fedilink
      arrow-up
      1
      ·
      2 个月前

      Wouldn’t the ship itself perceive a lot less of that time compared to an external point of reference?

      • ...m...@ttrpg.network
        link
        fedilink
        arrow-up
        1
        ·
        2 个月前

        deleted by creator

Science@lemmy.ml

science@lemmy.ml

Subscribe from Remote Instance

Create a post
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !science@lemmy.ml

Subscribe to see new publications and popular science coverage of current research on your homepage


Visibility: Public
globe

This community can be federated to other instances and be posted/commented in by their users.

  • 21 users / day
  • 117 users / week
  • 612 users / month
  • 1.99K users / 6 months
  • 1 local subscriber
  • 17.3K subscribers
  • 1.18K Posts
  • 2.62K Comments
  • Modlog
  • mods:
  • MinutePhrase@lemmy.ml
  • BE: 0.19.12
  • Modlog
  • Instances
  • Docs
  • Code
  • join-lemmy.org