iotman (3)in #science • 15 hours ago🌌 SpacePicture of a Day: Planet Parade over Sydney Opera House 🪐Look up this week and see a whole bunch of planets. Just after sunset, looking west (mostly), planets Mercury, Venus, Saturn, and Jupiter will all be visible to the unaided eye…iotman (3)in #science • 2 days ago🌌 SpacePicture of a Day: Pleiades: The Seven Sisters Star Cluster 🪐Have you ever seen the Pleiades star cluster? Even if you have, you probably have never seen it as large and clear as this. Perhaps the most famous star cluster on the sky, the…iotman (3)in #science • 3 days ago🌌 SpacePicture of a Day: Shadow of a Martian Robot 🪐What if you saw your shadow on Mars and it wasn't human? Then you might be the Opportunity rover exploring Mars. Opportunity explored the Red Planet from 2004 to 2018, finding…iotman (3)in #science • 4 days ago🌌 SpacePicture of a Day: Twilight with Moon and Planets 🪐Only two days after the February New Moon's annular eclipse of the Sun, a slender lunar crescent poses above the western horizon after sunset in this wintry twilight skyscape.…iotman (3)in #science • 6 days ago🌌 SpacePicture of a Day: IC 2574: Coddington's Nebula 🪐Grand spiral galaxies often seem to get all the glory, flaunting their young, bright, blue star clusters in beautiful, symmetric spiral arms. But small, irregular galaxies form…iotman (3)in #science • 7 days ago🌌 SpacePicture of a Day: Orion's Cradle 🪐Cradled in red-glowing hydrogen gas, stars are being born in Orion. These stellar nurseries lie at the edge of the giant Orion molecular cloud complex, some 1,500 light-years…iotman (3)in #science • 8 days ago🌌 SpacePicture of a Day: Tails of Comet Wierzchoś 🪐Some comets are regular guests of our solar neighborhood; others come by only once, never to return. We won’t have another chance to see Comet C/2024 E1 (Wierzchoś), which is…iotman (3)in #science • 9 days ago🌌 SpacePicture of a Day: Unexplained Shocks Around a White Dwarf Star 🪐How is RXJ0528+2838 creating such shock waves? A recently discovered white dwarf star, the farther left of the two largest white spots, RXJ0528+2838, was found 730 light-years…iotman (3)in #science • 11 days ago🌌 SpacePicture of a Day: Roses are Red 🪐Roses are red, nebulas are too, and this Valentine's gift is a stunning view! Pictured is a loving look at the Rosette Nebula (NGC 2237): a cosmic bloom of bright young stars…iotman (3)in #science • 12 days ago🌌 SpacePicture of a Day: NGC 147 and NGC 185 🪐Dwarf galaxies NGC 147 (left) and NGC 185 stand side by side in this deep telescopic portrait. The two are not-often-imaged satellite galaxies of M31, the great spiral Andromeda…iotman (3)in #science • 13 days ago🌌 SpacePicture of a Day: The Bay of Rainbows 🪐Dark, smooth regions that cover the Moon's familiar face are called by Latin names for oceans and seas. That naming convention is historical, though it may seem a little ironic…iotman (3)in #science • 14 days ago🌌 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.…iotman (3)in #science • 16 days ago🌌 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…iotman (3)in #science • 17 days ago🌌 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…iotman (3)in #science • 18 days ago🌌 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…iotman (3)in #science • 19 days ago🌌 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…iotman (3)in #science • 21 days ago🌌 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…iotman (3)in #science • 22 days ago🌌 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…iotman (3)in #science • 24 days ago🌌 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…iotman (3)in #science • 25 days ago🌌 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…
