Add to collection
  • + Create new collection
    • View of the milky way, with a tree silhouette in the middle
    Rights: Shingo Takei Published 10 May 2011, Updated 12 March 2019 Size: 160 KB Referencing Hub media

    We can see but not hear stars in faraway galaxies. This is because light can travel through a vacuum but sound cannot (sound needs a medium).

      Appears in

      ARTICLE

      Hearing sound

      Three components are needed for sound to be heard: A source – where the sound is made. A medium – something for the sound to travel through. A receiver – something to detect the sound. Source ...

      READ MORE
      MORE
      Add to favourites
      Add to collection
    1. + Create new collection
      2. Wellington

      Stargazing 101: Astronomy for Beginners

      Have you ever looked up and wondered what you’re looking at? Join Space Place for the very fanother Stargazing 101: Astronomy for Beginners! Perfect for anyone interested in the night sky, this ...

      05/02/2024 - 04/06/2025
        Go to full glossary
        Download all
        Email Us

        See our newsletters here.