ASTRONOMY TERMS

Astronomy terms are used to describe the various phenomena in space. In this section you can learn what every astronomy term means and how it helps us to better understand the cosmos.
Featured

How Deep Impact Works

How do scientists find details about the early days of our solar system? One way is to investigate comets. Find out how the Deep Impact spacecraft fired an impactor into Comet Tempel 1 to get some answers.

91-94 of 94
  • Year

    Year

    Year, a unit of time. It is based on the time it takes the earth to make one revolution around the sun. See more »

  • Zenith

    Zenith

    Zenith, the point in the heavens that is directly above the head of the observer. See more »

  • Zodiac

    Zodiac

    Zodiac, an imaginary belt in the sky extending some 8 on either side of the ecliptic, the apparent annual path of the sun among the stars. See more »

  • Zodiacal Light

    Zodiacal Light

    Zodiacal Light, a faint glow that appears along the zodiac above the western horizon after sunset and above the eastern horizon before sunrise. See more »

91-94 of 94
More To Explore
  • Most Popular
Don't Miss