Dr. John Barentine FRAS<p>"Among the other changes that have occurred since that first image of the entire Earth 50 years ago is the amount of human development and activity on our planet's surface. Although not visible in these images of the daylight side of the Earth, other satellites monitor for lights visible on the dark side of our planet. These show dramatic expansions in the urban sprawl across the continents alongside the activity of shipping on the Earth's oceans."</p><p><a href="https://www.bbc.com/future/article/20250422-how-50-years-of-climate-change-has-changed-the-face-of-the-blue-marble" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bbc.com/future/article/2025042</span><span class="invisible">2-how-50-years-of-climate-change-has-changed-the-face-of-the-blue-marble</span></a></p><p><a href="https://astrodon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://astrodon.social/tags/BlueMarble" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlueMarble</span></a> <a href="https://astrodon.social/tags/Earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Earth</span></a> <a href="https://astrodon.social/tags/EarthDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthDay</span></a></p>