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NGC 474's ghostly shell galaxy & Predawn Moon, Mars, Saturn lineup - Space News (Jul 12, 2026)
Published 6 days, 14 hours ago
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Episode Transcript
NGC 474's ghostly shell galaxy
First up, NGC 474. A newly featured deep image shows this elliptical galaxy surrounded by delicate shells and faint streams of stars, giving it the appearance of ripples or wheels made of light. Those structures are the leftovers of past encounters with smaller galaxies, so this isn't just a beautiful picture; it's a record of cosmic cannibalism. For astronomers, features like these help reconstruct how galaxies grow over time and may even offer clues about the invisible dark matter shaping their motions.
Predawn Moon, Mars, Saturn lineup
Back in our own sky, early risers on July 11 and 12 were treated to a graceful predawn lineup. The waning crescent Moon appeared near Mars and Saturn in the eastern sky, creating an easy-to-spot planetary scene for naked-eye observers, while Uranus joined the grouping for anyone with binoculars or a telescope. Alignments like this are mostly about perspective, not the planets crowding together in space, but they are a great reminder that the Solar System is dynamic and visible to anyone willing to look up before sunrise.
NOAA reports minor solar blackout
Now to space weather. NOAA's Space Weather Prediction Center reported an R1, or minor, radio blackout as of early July 12 UTC. In practical terms, that means solar flare activity was strong enough to cause weak degradation of high-frequency radio communication on the
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Buy me a coffee: https://buymeacoffee.com/theautomateddaily
Today's topics:
NGC 474's ghostly shell galaxy - A newly highlighted deep image of NGC 474 reveals faint shells and stellar streams around the elliptical galaxy. The view offers fresh insight into galaxy mergers, stellar archaeology, and how dark matter may shape these ghostly structures.
Predawn Moon, Mars, Saturn lineup - Skywatchers on July 11 and 12 had a chance to see the waning crescent Moon lining up with Mars and Saturn before sunrise, with Uranus nearby for binocular users. It's a timely and accessible astronomy event that helps listeners connect with the Solar System in real time.
NOAA reports minor solar blackout - NOAA's Space Weather Prediction Center reported an R1 minor radio blackout on July 12, 2026. The update shows how solar flares can affect high-frequency radio communication and why daily space weather monitoring matters for technology and operations on Earth.
Tianwen-2 studies Earth quasi-satellite - China's Tianwen-2 mission is now conducting science at asteroid Kamoʻoalewa, a near-Earth quasi-satellite with an unusual orbit. The mission adds context to today's headlines by showing how active asteroid exploration has become in 2026.
Dark July skies invite observers - With New Moon approaching on July 14, mid-July offers darker skies for viewing the Milky Way and other faint targets. That makes this week's planetary alignment part of a broader stretch of excellent observing opportunities.
Episode Transcript
NGC 474's ghostly shell galaxy
First up, NGC 474. A newly featured deep image shows this elliptical galaxy surrounded by delicate shells and faint streams of stars, giving it the appearance of ripples or wheels made of light. Those structures are the leftovers of past encounters with smaller galaxies, so this isn't just a beautiful picture; it's a record of cosmic cannibalism. For astronomers, features like these help reconstruct how galaxies grow over time and may even offer clues about the invisible dark matter shaping their motions.
Predawn Moon, Mars, Saturn lineup
Back in our own sky, early risers on July 11 and 12 were treated to a graceful predawn lineup. The waning crescent Moon appeared near Mars and Saturn in the eastern sky, creating an easy-to-spot planetary scene for naked-eye observers, while Uranus joined the grouping for anyone with binoculars or a telescope. Alignments like this are mostly about perspective, not the planets crowding together in space, but they are a great reminder that the Solar System is dynamic and visible to anyone willing to look up before sunrise.
NOAA reports minor solar blackout
Now to space weather. NOAA's Space Weather Prediction Center reported an R1, or minor, radio blackout as of early July 12 UTC. In practical terms, that means solar flare activity was strong enough to cause weak degradation of high-frequency radio communication on the