Solar System & Planets

Talk about planets, moons, asteroids, comets, planetary science, exploration missions and discoveries across our Solar System.

    2. How come Mars is red? 23

      • benish
      • March 8, 2023 at 12:45 PM
      • benish
      • October 2, 2026 at 8:17 PM
    3. Replies
      23
      Views
      4.5k
      23

    4. SkyBrutus

      October 2, 2026 at 8:17 PM

    2. If there was no moon, what would happen? 21

      • benish
      • March 10, 2023 at 6:52 PM
      • benish
      • October 2, 2026 at 2:44 PM
    3. Replies
      21
      Views
      4.2k
      21

    4. chance7

      October 2, 2026 at 2:44 PM

    2. Comparing Europa, Enceladus, and Titan 11

      • SkyBrutus
      • September 3, 2026 at 8:08 PM
    3. Replies
      11
      Views
      525
      11

    4. SkyBrutus

      September 3, 2026 at 8:08 PM

    2. Can you live in Jupiter's atmosphere? 26

      • benish
      • March 8, 2023 at 10:06 PM
      • benish
      • August 16, 2026 at 7:55 AM
    3. Replies
      26
      Views
      5.4k
      26

    4. josh1235678

      August 16, 2026 at 7:55 AM

    2. The Search for Life: Which Planets Are Most Likely to Host Extraterrestrial Life? 13

      • timedust.1996
      • August 1, 2026 at 4:46 PM
    3. Replies
      13
      Views
      1.4k
      13

    4. junior128

      August 1, 2026 at 4:46 PM

    2. Venus Express 37

      • Gabrielle
      • August 1, 2026 at 9:56 AM
    3. Replies
      37
      Views
      6.9k
      37

    4. Hoikka

      August 1, 2026 at 9:56 AM

    2. Saturn and Its rings 20

      • Roberachi
      • July 31, 2026 at 12:46 PM
    3. Replies
      20
      Views
      5.4k
      20

    4. junior128

      July 31, 2026 at 12:46 PM

    2. Europa Clipper Mission: What to Expect from NASA's Upcoming Mission 9

      • chance7
      • November 20, 2025 at 1:24 PM
      • chance7
      • July 4, 2026 at 12:28 PM
    3. Replies
      9
      Views
      1.1k
      9

    4. blind

      July 4, 2026 at 12:28 PM

    2. For how long can we survive without the moon? 19

      • benish
      • March 11, 2023 at 7:20 PM
      • benish
      • July 3, 2026 at 9:24 PM
    3. Replies
      19
      Views
      4.6k
      19

    4. timedust.1996

      July 3, 2026 at 9:24 PM

    2. Jupiter's Magnetic Field: Understanding Its Strength and Effects on Space Weather 14

      • chance7
      • April 29, 2026 at 2:53 PM
      • chance7
      • June 23, 2026 at 6:49 PM
    3. Replies
      14
      Views
      739
      14

    4. junior128

      June 23, 2026 at 6:49 PM

    2. The Cultural Impact of Mars in Literature and Film 4

      • z1ngaro
      • December 9, 2025 at 11:40 AM
      • z1ngaro
      • June 22, 2026 at 9:45 AM
    3. Replies
      4
      Views
      972
      4

    4. josh1235678

      June 22, 2026 at 9:45 AM

    2. Is there life on Europa? 4

      • benish
      • March 10, 2023 at 1:54 PM
      • benish
      • April 27, 2025 at 9:47 PM
    3. Replies
      4
      Views
      3.5k
      4

    4. gtvo

      April 27, 2025 at 9:47 PM

Display Options