#solar-system — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #solar-system, aggregated by home.social.
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4 sunscreen myths too many people still get wrong
https://fed.brid.gy/r/https://www.popsci.com/science/sunscreen-myths-podcast/
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2026-08-06 12:00:00 UTC (Delta: 2026-07-30)
SATURN
- Distance (km): 1,333,314,579.24 km (-15,617,437.80 km)
- Distance (AU): 8.91 (-0.10)
- Light travel time: 1 h 14 min 7.46 s (-52.09 s)
- Orbital speed: 9.74 km/s (+0.00 km/s)Image: Shadowcaster
Credit: NASA/JPL/Space Science Institute -
Earth’s Orbit May Have Been Altered by a Passing Star 2.8 Million Years Ago
(follow me to read the story)https://buymeacoffee.com/newscafe/earth-orbit-may-have-been-altered-passing-star-2-8-million-years-ago
#cosmos #universe #science #astronomy #solarsystem -
Plasma waves spotted on sun’s surface for the first time
https://fed.brid.gy/r/https://www.popsci.com/science/sun-plasma-waves-first-images/
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#QuizOfTheDay: #Moons, also known as natural #Satellites, orbit #Planets and #Asteroids in our #SolarSystem. Earth has one moon, and there are more than 200 moons in our solar system.
Do you know Phobos is a moon of which planet?
A. Mars
B. Jupiter
C. Saturn
D. Uranushttps://knowledgezone.co.in/resources/quiz?qId=6277757d5fa97eea95734d0a
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2026-08-04 12:00:00 UTC (Delta: 2026-07-28)
VENUS
- Distance (km): 115,520,856.33 km (-8,383,913.06 km)
- Distance (AU): 0.77 (-0.06)
- Light travel time: 6 min 25.34 s (-27.97 s)
- Orbital speed: 34.87 km/s (-0.04 km/s)Image: Photograph by Pioneer Venus Recent computer enchanced surface relief images of Venus.
Credit: ARC -
2026-08-03 12:00:00 UTC (Delta: 2026-07-27)
MERCURY
- Distance (km): 136,090,364.13 km (+24,105,792.10 km)
- Distance (AU): 0.91 (+0.16)
- Light travel time: 7 min 33.95 s (+1 min 20.41 s)
- Orbital speed: 54.04 km/s (+5.29 km/s)Image: Mercury Shows Signs of Aging
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington -
Stardust as nucleation seeds for the earliest solids in the Solar System: https://www.science.org/doi/10.1126/sciadv.ady2311 -> Ancient Stardust Were Seeds for the Earliest Solids in the #SolarSystem: https://www.caltech.edu/about/news/ancient-stardust-were-seeds-for-the-earliest-solids-in-the-solar-system
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2026-08-02 12:00:00 UTC (Delta: 2026-07-26)
PLUTO [ *1930 +2006 ]
- Distance (km): 5,170,456,626.40 km (+1,664,955.95 km)
- Distance (AU): 34.56 (+0.01)
- Light travel time: 4 h 47 min 26.79 s (+5.55 s)
- Orbital speed: 5.22 km/s (-0.01 km/s)Image: The Jagged Shores of Pluto Highlands
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute -
2026-08-01 12:00:00 UTC (Delta: 2026-07-25)
NEPTUNE
- Distance (km): 4,381,071,945.86 km (-14,953,554.81 km)
- Distance (AU): 29.29 (-0.10)
- Light travel time: 4 h 3 min 33.68 s (-49.88 s)
- Orbital speed: 5.47 km/s (+0.00 km/s)Image: Neptune South Polar Region
Credit: NASA/JPL -
THE WEEKLY SPIN
31/2026 -
August stargazing: A planet parade, two eclipses, and one scary star
https://fed.brid.gy/r/https://www.popsci.com/science/stargazing-guide-august-2026/
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2026-07-31 12:00:00 UTC (Delta: 2026-07-24)
URANUS
- Distance (km): 2,975,050,321.67 km (-15,422,921.08 km)
- Distance (AU): 19.89 (-0.10)
- Light travel time: 2 h 45 min 23.70 s (-51.45 s)
- Orbital speed: 6.72 km/s (+0.00 km/s)Image: Uranus as seen by NASA Voyager 2
Credit: NASA/JPL-Caltech -
2026-07-30 12:00:00 UTC (Delta: 2026-07-23)
SATURN
- Distance (km): 1,348,932,017.04 km (-16,398,883.98 km)
- Distance (AU): 9.02 (-0.11)
- Light travel time: 1 h 14 min 59.55 s (-54.70 s)
- Orbital speed: 9.73 km/s (+0.00 km/s)Image: The Grace of Saturn
Credit: NASA/JPL-Caltech/Space Science Institute -
Curiosity rover spots ancient sea of Martian polygons
https://fed.brid.gy/r/https://www.popsci.com/science/mars-curiosity-rover-polygons/
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2026-07-29 12:00:00 UTC (Delta: 2026-07-22)
JUPITER
- Distance (km): 942,630,311.02 km (+979,851.42 km)
- Distance (AU): 6.30 (+0.01)
- Light travel time: 52 min 24.28 s (+3.27 s)
- Orbital speed: 12.86 km/s (-0.00 km/s)Image: Jupiter's North Equatorial Belt
Credit: NASA/JPL -
💁🏻♀️ TIL: 🌋☄️ An analysis of 89 major geological events over 260 million years finds #Earth’s biggest disasters cluster every 27.5 million years.
An #NYU geologist suggests this may link interior processes to orbital cycles or the #solarsystem’s motion through the #MilkyWay. The idea remains controversial but has held up against refined #data.
#geology #earthscience #science #volcano #astronomy #evolution #platetectonics #climate
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2026-07-28 12:00:00 UTC (Delta: 2026-07-21)
VENUS
- Distance (km): 123,904,769.40 km (-8,341,300.16 km)
- Distance (AU): 0.83 (-0.06)
- Light travel time: 6 min 53.30 s (-27.82 s)
- Orbital speed: 34.90 km/s (-0.04 km/s)Image: Infrared Image of Low Clouds on Venus
Credit: NASA/JPL -
⚡️"Build your own #solar system for less than $5000!" they said, as if a few YouTube videos and a trip to Home Depot will suddenly turn you into Elon Musk. 🙄 Spoiler alert: by the time you're done, you'll have a sunburn and a pile of receipts, but at least you'll have all that free #power to charge your regret. 🌞💸
https://www.gavinmai.com/1736354308000-diy-home-solar-backup-system #DIY #SolarSystem #RegretHomeDepot #RenewableEnergy #HackerNews #ngated -
2026-07-27 12:00:00 UTC (Delta: 2026-07-20)
MERCURY
- Distance (km): 111,984,572.03 km (+17,352,844.54 km)
- Distance (AU): 0.75 (+0.12)
- Light travel time: 6 min 13.54 s (+57.88 s)
- Orbital speed: 48.75 km/s (+4.54 km/s)Image: Cosmic Rays Near Mercury
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington -
Are Aliens Harvesting the Spin of Stars? https://www.universetoday.com/articles/are-aliens-harvesting-the-spin-of-stars 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology
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2026-07-26 12:00:00 UTC (Delta: 2026-07-19)
PLUTO [ *1930 +2006 ]
- Distance (km): 5,168,791,670.46 km (-462,950.44 km)
- Distance (AU): 34.55 (-0.00)
- Light travel time: 4 h 47 min 21.23 s (-1.54 s)
- Orbital speed: 5.24 km/s (-0.01 km/s)Image: Snakeskin Terrain
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute -
Photographer Captures Rare Shot of Venus and the ISS Together in One Frame https://petapixel.com/2026/07/26/photographer-captures-rare-shot-of-venus-and-the-iss-together-in-one-frame/ #internationalspacestation #astrophotography #solarsystem #astrophoto #Spotlight #ajsmadi #Space #venus #iss
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2026-07-25 12:00:00 UTC (Delta: 2026-07-18)
NEPTUNE
- Distance (km): 4,396,025,500.67 km (-15,954,140.87 km)
- Distance (AU): 29.39 (-0.11)
- Light travel time: 4 h 4 min 23.56 s (-53.22 s)
- Orbital speed: 5.47 km/s (-0.00 km/s)Image: Post-encounter View of Neptune South Pole
Credit: NASA/JPL -
THE WEEKLY SPIN
30/2026 -
23-Jul-2026
Why #Europa’s hidden ocean may be more difficult to reach than scientists thought
A Rutgers scientist says shallow water on #Jupiter’s icy moon may not offer a direct window into its deep #subsurface -
23-Jul-2026
Rocks from unexplored far side of the #moon help rewrite lunar history -
https://www.theguardian.com/world/2026/jul/23/trump-says-he-is-close-to-decision-on-largest-yet-attack-on-iran. The ordinary people of #Iran go on suffering, #international #law keeps on being broken, yet more #warcrimes are committed - & all so the #fossilfuel #companies can make larger & larger #profits, Vladimir #Putin can make even more #revenue from his #oil & #gas to pay for his #war in #Ukraine, & Donald #Trump can keep on massaging his #SolarSystem sized #ego!
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2026-07-24 12:00:00 UTC (Delta: 2026-07-17)
URANUS
- Distance (km): 2,990,473,242.74 km (-14,341,507.75 km)
- Distance (AU): 19.99 (-0.10)
- Light travel time: 2 h 46 min 15.15 s (-47.84 s)
- Orbital speed: 6.72 km/s (+0.00 km/s)Image: Alien aurorae spotted on Uranus by Hubble
Credit: NASA Goddard -
☿️ Meet Mercury: the Solar System's fastest, toughest overachiever.
Closest to the Sun. Fastest orbit in the neighborhood (47 km/s!). A day that's literally longer than its year. And a surface that swings from 430°C at noon to -180°C at night — with basically no atmosphere to soften the blow.
#Mercury #SolarSystem #Space #Astronomy #NASA #Planets #ScienceCommunication #ScentsOfSciencehttps://scentsofscience.com/2026/07/24/mercurys-cv-the-solar-systems-fastest-toughest-overachiever/