Can You See Earth's Glow From Earth?
The phenomenon described as "Earth's glow" during Artemis II was observed from deep space, where Earth directly illuminated the Moon from a unique vantage point.
From Earth, a related phenomenon called Earthshine can be observed, where sunlight reflected from Earth faintly illuminates the dark portion of the Moon.
While not the same perspective experienced by the Artemis II crew, Earthshine provides a way to observe the underlying light interaction from Earth.
What You Can Actually See
Earthshine is visible during crescent Moon phases, when the dark portion of the Moon is faintly illuminated by sunlight reflected from Earth.
This phenomenon is often poetically called "the old Moon in the new Moon's arms."
This is not the same as the deep-space observation described during Artemis II, but it is the closest observable equivalent from Earth.
Why the Difference Matters
Earth-based observation: Distant and indirect. You observe Earthshine as a subtle glow on the Moon's dark side, competing with atmospheric interference and light pollution.
Artemis II observation: Direct and dominant. From deep space behind the Moon, Earth served as the primary light source, dramatically illuminating the lunar surface with no atmosphere to diminish the effect.
Human perception: The visual experience differs significantly. What appears as a faint glow from Earth becomes a vivid, striking illumination from the vantage point of deep space.
How to Observe
Best During Crescent Moon Phases
Earthshine is most visible during waxing or waning crescent phases:
• Waxing crescent: 2-5 days after new moon (evening, western sky)
• Waning crescent: 2-5 days before new moon (morning, eastern sky)
Low Light Pollution Helps
While visible from urban areas, Earthshine is more pronounced in locations with minimal artificial light. Move away from bright streetlights when possible.
Binoculars or Small Telescope (Optional)
Earthshine is visible to the naked eye, but optical aids make the effect more dramatic and reveal additional lunar surface detail.