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IoTman
@iotman
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2018-01-20 04:44
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🌌 SpacePicture of a Day: A Year of Sunspots 🪐
How many sunspots can you see? The central image shows the many sunspots that occurred in 2025, month by month around the circle, and all together in the grand central image. Each sunspot is magnetically
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🌌 SpacePicture of a Day: Miranda Revisited 🪐
What is Miranda really like? Visually, old images from NASA's Voyager 2 have been recently combined and remastered to result in the featured image of Uranus's 500-kilometer-wide moon. In the late 1980s,
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🌌 SpacePicture of a Day: Active Sunspot Region 4366 Crosses the Sun 🪐
An unusually active sunspot region is now crossing the Sun. The region, labelled AR 4366, is much larger than the Earth and has produced several powerful solar flares over the past ten days. In the featured
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🌌 SpacePicture of a Day: Crescent Enceladus 🪐
Peering from the shadows, the Saturn-facing hemisphere of tantalizing inner moon Enceladus poses in this Cassini spacecraft image. North is up in the dramatic scene captured during November 2016 as Cassini's
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🌌 SpacePicture of a Day: Supernova Remnant Cassiopeia A 🪐
Massive stars in our Milky Way Galaxy live spectacular lives. Collapsing from vast cosmic clouds, their nuclear furnaces ignite and create heavy elements in their cores. After only a few million years
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🌌 SpacePicture of a Day: Spiral Galaxy NGC 1512: Wide Field 🪐
Most galaxies don't have any rings -- why does this galaxy have three? To begin, a ring that's near NGC 1512's center -- and so hard to see here -- is the nuclear ring which glows brightly with recently
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🌌 SpacePicture of a Day: Red Spider Planetary Nebula from Webb 🪐
Oh what a tangled web a planetary nebula can weave. The Red Spider Planetary Nebula shows the complex structure that can result when a normal star ejects its outer gases and becomes a white dwarf star.
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🌌 SpacePicture of a Day: Galle: Happy Face Crater on Mars 🪐
Mars has put on a happy face. The Martian crater Galle is famous because it has internal markings that make it look like a face that is both smiling and winking. These markings were originally discovered
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🌌 SpacePicture of a Day: Artemis I: Flight Day 13 🪐
On flight day 13 (November 28, 2022) of the Artemis 1 mission, the Orion spacecraft reached its maximum distance from Earth. At over 430,000 kilometers from Earth, its distant retrograde orbit also puts
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🌌 SpacePicture of a Day: NGC 1333: Stellar Nursery in Perseus 🪐
NGC 1333 is seen in visible light as a reflection nebula, dominated by bluish hues characteristic of starlight reflected by interstellar dust. A mere 1,000 light-years distant toward the heroic constellation
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🌌 SpacePicture of a Day: NGC 2442: Galaxy in Volans 🪐
Distorted galaxy NGC 2442 can be found in the southern constellation of the flying fish, (Piscis) Volans. Located about 50 million light-years away, the galaxy's two spiral arms extending from a pronounced
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🌌 SpacePicture of a Day: Orion's Treasures over Snowy Mountains 🪐
Rising over a frozen valley in the Tatra Mountains, the familiar stars and nebulas of Orion dominate this wide-field nightscape. The featured deep photo was taken in southern Poland's highest mountain
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🌌 SpacePicture of a Day: NGC 55: A Galaxy of Nebulas 🪐
Can you see nebulas in other galaxies? Yes, some nebulas shine brightly enough -- if you know how to look. Clouds of hydrogen and oxygen emit light at very specific colors, and by isolating them, astronomers
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🌌 SpacePicture of a Day: Phobos: Doomed Moon of Mars 🪐
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
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🌌 SpacePicture of a Day: Earthset from Orion 🪐
ght billion people are about to disappear in this snapshot from space taken on 2022 November 21. On the sixth day of the Artemis I mission, their home world is setting behind the Moon's bright edge as
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🌌 SpacePicture of a Day: Planetary Nebula Abell 7 🪐
Very faint planetary nebula Abell 7 is about 1,800 light-years distant. It lies just south of Orion in planet Earth's skies toward the constellation Lepus, The Hare. Posing with scattered Milky Way stars,
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🌌 SpacePicture of a Day: LDN 1622: Dark Nebula in Orion 🪐
The silhouette of an intriguing dark nebula inhabits this cosmic scene. Lynds' Dark Nebula (LDN) 1622 appears against a faint background of glowing hydrogen gas only visible in long telescopic exposures
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🌌 SpacePicture of a Day: Barred Spiral Galaxy NGC 1365 from Webb 🪐
A mere 56 million light-years distant toward the southern constellation Fornax, NGC 1365 is an enormous barred spiral galaxy about 200,000 light-years in diameter. That's twice the size of our own barred
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🌌 SpacePicture of a Day: Io in True Color 🪐
The strangest moon in the Solar System is bright yellow. The featured picture, an attempt to show how Io would appear in the "true colors" perceptible to the average human eye, was taken in 1999
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🌌 SpacePicture of a Day: CTB 1: The Medulla Nebula 🪐
What powers this unusual nebula? CTB 1 is the expanding gas shell that was left when a massive star toward the constellation of Cassiopeia exploded about 10,000 years ago. The star likely detonated when
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