<div class="" data-article-body="true"><p class="mb-4 text-lg md:leading-8 break-words"><i>When you buy through links on our articles, Future and its syndication partners may earn a commission.</i></p><figure class="relative mb-4"><div class="relative"><img alt=" A photograph of the tip of Florida and nearby Cuba from space, with lights from cities illuminating the surface of the planet, labeled cities like Orlando and Tampa are seen as well as a green surface over Earth's labeled airglow. " loading="lazy" width="960" height="540" decoding="async" data-nimg="1" class="rounded-lg" style="color:transparent" src="https://s.yimg.com/ny/api/res/1.2/oA6Cxrpk8tGRcF_pEGiz3g--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTU0MDtjZj13ZWJw/https://media.zenfs.com/en/space_311/27a0450205594052b99fc52adc4819f1"><button aria-label="View larger image" class="group absolute bottom-3 right-3 size-10 md:size-[50px] lg:inset-0 lg:size-full lg:bg-transparent" data-ylk="elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;"><span class="absolute bottom-0 right-0 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white/90 lg:p-5 lg:opacity-0 lg:shadow-none"><svg viewbox="0 0 22 22" aria-hidden="true" class="size-4 lg:size-6" width="22" height="22"><path d="M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z"></path></svg></span></button><dialog aria-label="Modal Dialog" aria-modal="true" class="fixed inset-0 z-4 size-full max-h-none max-w-none bg-white hidden"></dialog></div><figcaption class="relative text-sm mt-1 pr-2.5"><div style="max-height:none;overflow:visible">Airglow and city lights come together in this image. . | Credit: NASA/Expedition 72 crew</div></figcaption></figure><p class="mb-4 text-lg md:leading-8 break-words">At 2:23 am Eastern time on March 19, 2025, an astronaut aboard the <a href="https://www.space.com/16748-international-space-station.html" rel="nofollow noopener" target="_blank" data-ylk="slk:International Space station (ISS);elm:context_link;itc:0;sec:content-canvas" class="link "><u>International Space station (ISS)</u> </a>captured a striking nighttime view of <a href="https://www.space.com/54-earth-history-composition-and-atmosphere.html" rel="nofollow noopener" target="_blank" data-ylk="slk:Earth,;elm:context_link;itc:0;sec:content-canvas" class="link "><u>Earth,</u></a> where shimmering moonlight dances across dark ocean waters while clusters of city lights outline the Florida Peninsula, the Caribbean, and parts of Central America.</p><p class="mb-4 text-lg md:leading-8 break-words">Dense clusters of illumination trace major population centers, including the bright corridor from Miami to Fort Lauderdale along Florida's southeastern coast, the Tampa–St. Petersburg area on the Gulf Coast, and the Orlando metropolitan region near the center of the peninsula. Smaller but still discernible patterns of light mark the Florida Keys, Nassau in the Bahamas, and Havana and other cities across Cuba.</p><h2 class="mb-4 text-xl font-bold md:text-2xl">What is it?</h2><p class="mb-4 text-lg md:leading-8 break-words">Besides the stunning city lights, what sets this image apart is the presence of <a href="https://science.nasa.gov/earth/earth-observatory/city-lights-glow-along-moonlit-waters/" rel="nofollow noopener" target="_blank" data-ylk="slk:moonglint;elm:context_link;itc:0;sec:content-canvas" class="link "><u>moonglint</u></a><u>,</u> the nighttime counterpart to <a href="https://www.space.com/astronomy/earth/iss-astronaut-spies-sunglint-from-lake-titicaca-space-photo-of-the-day-for-july-9-2025" rel="nofollow noopener" target="_blank" data-ylk="slk:sunglint.;elm:context_link;itc:0;sec:content-canvas" class="link "><u>sunglint.</u></a> Much like sunlight reflecting off the ocean's surface during the day, moonglint occurs when moonlight reflects off water at just the right angle to reach the observer.</p><p class="mb-4 text-lg md:leading-8 break-words">In this case, the observer was a crewmember on the ISS, orbiting hundreds of miles above Earth. At the time, the moon was in a waning phase and about <a href="https://science.nasa.gov/earth/earth-observatory/city-lights-glow-along-moonlit-waters/" rel="nofollow noopener" target="_blank" data-ylk="slk:78% illuminated;elm:context_link;itc:0;sec:content-canvas" class="link "><u>78% illuminated</u></a>, bright enough to produce a concentrated reflection across the sea, especially near the Florida Keys and Cuba.</p><p class="mb-4 text-lg md:leading-8 break-words">The photograph was taken using a <a href="https://www.space.com/nikon-z9-review" rel="nofollow noopener" target="_blank" data-ylk="slk:Nikon Z9 digital camera;elm:context_link;itc:0;sec:content-canvas" class="link "><u>Nikon Z9 digital camera </u></a>with a 28-millimeter lens, giving a wide field of view similar to that of the human eye. This perspective allows viewers to appreciate the curvature of the planet, accentuated by a thin, faint green layer of <a href="https://www.space.com/42371-orange-earth-airglow.html" rel="nofollow noopener" target="_blank" data-ylk="slk:airglow;elm:context_link;itc:0;sec:content-canvas" class="link "><u>airglow</u> </a>along the horizon, a reminder of Earth's atmosphere glowing softly against the darkness of space.</p><h2 class="mb-4 text-xl font-bold md:text-2xl">Where is it?</h2><p class="mb-4 text-lg md:leading-8 break-words">This photo was taken aboard the ISS, around 248 miles (400 kilometers) above Earth.</p><figure class="relative mb-4"><div class="relative"><img alt="A photograph of the tip of Florida and nearby Cuba from space, with lights from cities illuminating the surface of the planet, labeled cities like Orlando and Tampa are seen as well as a green surface over Earth's labeled airglow" loading="lazy" width="960" height="540" decoding="async" data-nimg="1" class="rounded-lg" style="color:transparent" src="https://s.yimg.com/ny/api/res/1.2/iSM5Jc8CPXoMk67UJvLmBQ--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTU0MDtjZj13ZWJw/https://media.zenfs.com/en/space_311/67722445067e1d3265ea4e7f0cb35fec"><button aria-label="View larger image" class="group absolute bottom-3 right-3 size-10 md:size-[50px] lg:inset-0 lg:size-full lg:bg-transparent" data-ylk="elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;"><span class="absolute bottom-0 right-0 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white/90 lg:p-5 lg:opacity-0 lg:shadow-none"><svg viewbox="0 0 22 22" aria-hidden="true" class="size-4 lg:size-6" width="22" height="22"><path d="M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z"></path></svg></span></button><dialog aria-label="Modal Dialog" aria-modal="true" class="fixed inset-0 z-4 size-full max-h-none max-w-none bg-white hidden"></dialog></div><figcaption class="relative text-sm mt-1 pr-2.5"><div style="max-height:none;overflow:visible">Moonglint and airglow are both phenomena featured in this image. | Credit: NASA/Expedition 72 crew</div></figcaption></figure><h2 class="mb-4 text-xl font-bold md:text-2xl">Why is it amazing?</h2><p class="mb-4 text-lg md:leading-8 break-words">Nighttime images of Earth reveal patterns of human settlement, infrastructure, and land use that are difficult to capture during the day. Scientists use such observations to study urban growth, energy consumption, and<a href="https://www.yahoo.com/news/light-pollution-poses-serious-threat-180100268.html" data-ylk="slk:light pollution,;elm:context_link;itc:0;sec:content-canvas;outcm:mb_qualified_link;_E:mb_qualified_link;ct:story;" class="link  yahoo-link"> <u>light pollution</u>, </a>while also tracking how human activity intersects with natural environments.</p><p class="mb-4 text-lg md:leading-8 break-words">The appearance of moonglint is especially valuable for researchers. Reflections of moonlight off the ocean can help scientists study sea-surface conditions, such as roughness and wave patterns, even at night. When combined with other data sources, these observations improve understanding of ocean–atmosphere interactions and refine models used in climate and environmental research.</p><figure class="relative mb-4"><div class="relative"><img alt="" loading="lazy" width="960" height="540" decoding="async" data-nimg="1" class="rounded-lg" style="color:transparent" src="https://s.yimg.com/ny/api/res/1.2/yfpI7TNVqjhCSAPXI.iGaA--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTU0MDtjZj13ZWJw/https://media.zenfs.com/en/space_311/8a072e1404e8a7e53ee71e952a7a19fd"><button aria-label="View larger image" class="group absolute bottom-3 right-3 size-10 md:size-[50px] lg:inset-0 lg:size-full lg:bg-transparent" data-ylk="elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;"><span class="absolute bottom-0 right-0 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white/90 lg:p-5 lg:opacity-0 lg:shadow-none"><svg viewbox="0 0 22 22" aria-hidden="true" class="size-4 lg:size-6" width="22" height="22"><path d="M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z"></path></svg></span></button><dialog aria-label="Modal Dialog" aria-modal="true" class="fixed inset-0 z-4 size-full max-h-none max-w-none bg-white hidden"></dialog></div></figure><p class="mb-4 text-lg md:leading-8 break-words">The image shows the difference in temperature between the top of a hurricane and the bottom.</p><figure class="relative mb-4"><div class="relative"><img alt="" loading="lazy" width="960" height="679" decoding="async" data-nimg="1" class="rounded-lg" style="color:transparent" src="https://s.yimg.com/ny/api/res/1.2/fXJumFv4xLGZyl3v92nuaQ--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTY3OTtjZj13ZWJw/https://media.zenfs.com/en/space_311/accd0d170e957404c9b6762863352937"><button aria-label="View larger image" class="group absolute bottom-3 right-3 size-10 md:size-[50px] lg:inset-0 lg:size-full lg:bg-transparent" data-ylk="elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;"><span class="absolute bottom-0 right-0 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white/90 lg:p-5 lg:opacity-0 lg:shadow-none"><svg viewbox="0 0 22 22" aria-hidden="true" class="size-4 lg:size-6" width="22" height="22"><path d="M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z"></path></svg></span></button><dialog aria-label="Modal Dialog" aria-modal="true" class="fixed inset-0 z-4 size-full max-h-none max-w-none bg-white hidden"></dialog></div></figure><p class="mb-4 text-lg md:leading-8 break-words">The images reveal the storm's incredible power and offer vital insights into how such hurricanes form.</p><figure class="relative mb-4"><div class="relative"><img alt="" loading="lazy" width="960" height="540" decoding="async" data-nimg="1" class="rounded-lg" style="color:transparent" src="https://s.yimg.com/ny/api/res/1.2/IGAN8za59Z1mV9UQt5HtcQ--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTU0MDtjZj13ZWJw/https://media.zenfs.com/en/space_311/d1e3b8f3ca40cead48c8ec6572c37c06"><button aria-label="View larger image" class="group absolute bottom-3 right-3 size-10 md:size-[50px] lg:inset-0 lg:size-full lg:bg-transparent" data-ylk="elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;"><span class="absolute bottom-0 right-0 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white/90 lg:p-5 lg:opacity-0 lg:shadow-none"><svg viewbox="0 0 22 22" aria-hidden="true" class="size-4 lg:size-6" width="22" height="22"><path d="M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z"></path></svg></span></button><dialog aria-label="Modal Dialog" aria-modal="true" class="fixed inset-0 z-4 size-full max-h-none max-w-none bg-white hidden"></dialog></div></figure><p class="mb-4 text-lg md:leading-8 break-words">A powerful geomagnetic storm created a series of brilliant auroras recently for observers across North America.</p><h2 class="mb-4 text-xl font-bold md:text-2xl">Want to learn more?</h2><p class="mb-4 text-lg md:leading-8 break-words">You can learn more about <a href="https://www.space.com/32668-incredible-rainbow-airglow-over-azores-photo.html" rel="nofollow noopener" target="_blank" data-ylk="slk:airglow;elm:context_link;itc:0;sec:content-canvas" class="link "><u>airglow</u></a> and the <a href="https://www.space.com/16748-international-space-station.html" rel="nofollow noopener" target="_blank" data-ylk="slk:International Space Station;elm:context_link;itc:0;sec:content-canvas" class="link "><u>International Space Station</u></a></p></div>

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