Space Facts & Astronomy
Discover amazing space facts, astronomy pictures of the day, and fascinating information about our universe from NASA.
Previous Days
The Observable Universe
How far can you see? Everything you can see, and everything you could possibly see, right now, assuming your eyes could...
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Dione and Rhea Ring Transit
Seen to the left of Saturn's banded planetary disk, small icy moons Dione and Rhea are caught passing in front of the ga...
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3I/ATLAS: A View from Planet Earth
Now outbound after its perihelion or closest approach to the Sun on October 29, Comet 3I/ATLAS is only the third known i...
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Alnitak, Alnilam, Mintaka
Alnitak, Alnilam, and Mintaka are the bright bluish stars from east to west (upper right to lower left) along the diagon...
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Chamaeleon Dark Nebulas
Sometimes the dark dust of interstellar space has an angular elegance. Such is the case toward the far-south constellat...
Read MoreThe Galactic Plane: Radio Versus Visible
What does the Milky Way look like in radio waves? To better find out, GLEAM surveyed the central band of our galaxy in h...
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Comet Lemmon's Wandering Tail
What has happened to Comet Lemmon's tail? The answer is blowing in the wind — the wind from the Sun in this case. This c...
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Crossing Saturn's Ring Plane
If this is Saturn, where are the rings? When Saturn's "appendages" disappeared in 1612, Galileo did not understand why....
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Andromeda and Friends
This magnificent extragalactic skyscape looks toward the Andromeda Galaxy, the closest large spiral galaxy to the Milky...
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Florida Northern Lights
Northern lights have come to Florida skies. In fact, the brilliant streak of a Northern Taurid meteor flashes through th...
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Orion and the Running Man
Few cosmic vistas can excite the imagination like The Great Nebula in Orion. Visible as a faint, bland celestial smudge...
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A Super Lunar Corona
What are those colorful rings around the Moon? A corona. Rings like this will sometimes appear when the Moon is seen t...
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