❓ why
Why does Venus have phases like the Moon?
Solar SystemVenus
Quick Answer
Venus orbits the Sun inside Earth’s orbit, so we see different amounts of its sunlit side over time. That makes it go through crescent, half, and gibbous phases.
The Full Story
Venus shows phases because, like the Moon, it is lit by the Sun and changes appearance as its position relative to Earth changes. When Venus is on the far side of the Sun, we see more of its illuminated face, so it appears gibbous. When it is between Earth and the Sun, only a thin crescent is visible. These phases were important evidence for the Copernican model of the Solar System and were famously observed by Galileo in 1610.
Key Facts
1.Galileo observed Venus’s phases in 1610
2.Venus is an inner planet inside Earth’s orbit
3.The visible phase depends on the Sun-Earth-Venus angle
YouTube Angle
Suggested video title for this topic:
"Venus does the Moon’s trick—on a planetary scale."