January 25, 2026
Here’s to you, and all the wonder still ahead.
Birthday · January 25, 2026
A little universe, just for you
Your date.
Ready to give.
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Selected image source ↗ APOD published January 25, 2026. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.
Read the original APOD for the astronomer’s explanation and full image credits. Its text is preserved in the archive as published.
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This moon is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for Fear and Panic. These Martian moons may well be captured asteroids originating in the main asteroid belt between Mars and Jupiter or perhaps from even more distant reaches of our Solar System. The larger moon, Phobos, is indeed seen to be a cratered, asteroid-like object in this stunning color image from the robotic Mars Reconnaissance Orbiter, which can image objects as small as 10 meters. But Phobos orbits so close to Mars - about 5,800 kilometers above the surface compared to 400,000 kilometers for our Moon - that gravitational tidal forces are dragging it down. In perhaps 50 million years, Phobos is expected to disintegrate into a ring of debris.
Explore January 25 in other years · 31 APOD entries, 1996–2026
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