The comparison between the iconic image of the Earth taken in 1972 by the Apollo 17 mission and the recent photograph captured by the Artemis II mission in 2026 has sparked debate on social media. The difference does not lie in the planet itself, but in the conditions of capture and the technology used.
In 1972, the photo was taken with a medium format Hasselblad analog camera, from about 33,000 km away, with the hemisphere fully illuminated by the Sun. The result was a clear image, with defined colors and high contrast, known as the “Blue Marble.”
In contrast, the Artemis II photograph was taken in low light conditions, focusing on the night side or dimly lit side of the Earth. To compensate for the low light, an ISO of 50,000 was used, which introduced noise and reduced color definition.
Technological Advances
Far from being a sign of deficiency, the Artemis II image reflects the advancement of modern cameras, capable of capturing celestial bodies in extreme conditions that were previously impossible.
The main difference is that the 1972 photo was taken in optimal light conditions, while the current one shows the ability to capture scenes in much more adverse scenarios.
Importance of Artemis II
The Artemis II mission is the first crewed flight to lunar orbit since 1972, marking humanity’s return to deep space. Its significance includes:
- Technological validation: tests the life support, navigation, and communication systems of the Orion spacecraft with crew.
- Trial for Mars: serves as a test mission for future journeys to more hostile environments.
- Lunar economy: part of the plan to establish a permanent base on the Moon and exploit resources like ice.
- International collaboration: represents a new era of cooperation in space exploration.
- Scientific inspiration: aims to motivate new generations and generate advances applicable on Earth, such as in medicine and telemedicine.
The difference between the two images is not a change in the Earth’s appearance, but in the conditions of capture. Artemis II demonstrates that current technology allows us to photograph our planet even in low exposure scenarios, while Apollo 17 did so in ideal conditions.
Both images, separated by more than half a century, reflect the progress of space exploration and humanity’s return to lunar orbit.
