Virgo Cluster by Ensign February 20, 2021 0 A gigantic cluster of over 2000 galaxies that is located mainly within the constellation of Virgo. This cluster is located ...
Visible Light by Ensign February 20, 2021 0 Wavelengths of electromagnetic radiation that are visible to the human eye.
Visual Magnitude by Ensign February 20, 2021 0 A scale used by astronomers to measure the brightness of a star or other celestial object. Visual magnitude measures only ...
Volcano by Ensign February 20, 2021 0 A mountain or hill that has an opening where lava, rock fragments, or gas erupt from deep inside a planet ...
Walking orbit by Ensign February 20, 2021 0 A spacecraft orbit that precesses, wherein the location of periapsis changes with respect to the planet's surface in a useful ...
Waning by Ensign February 20, 2021 0 The changing illumination of the Moon (or other body) over time. The Moon waxes, growing more illuminated, between its new ...
Wave by Ensign February 20, 2021 0 A way energy moves from one place to another. Sometimes waves move materials the way water ripples in a pond ...
