Popular Science HomepageArtemis II crew snaps stunning portrait of Earth on their way to the moon
https://fed.brid.gy/r/https://www.popsci.com/science/earth-photo-artemis-ii/
Where are we now?2026-04-03 12:00:00 UTC (Delta: 2026-03-27)
URANUS
- Distance (km): 3,016,824,154.90 km (+13,333,556.07 km)
- Distance (AU): 20.17 (+0.09)
- Light travel time: 2 h 47 min 43.04 s (+44.48 s)
- Orbital speed: 6.72 km/s (+0.00 km/s)
Image: ARC-1986-AC86-7000
Credit: JPL
JoelThis finding calls into question the idea that a planet’s composition is linked to where it formed.
https://lightsources.org/2026/03/17/wet-planets-might-evolve-from-dry-hydrogen-rich-planets/
K.Llewellin 
Giant 'forbidden planet' orbiting small star shows an unusually low-metal atmosphere https://phys.org/news/2026-04-giant-forbidden-planet-orbiting-small.html 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology
Giant 'forbidden planet' orbiting small star shows an unusually low-metal atmosphere
Scientists have discovered that a highly unusual giant planet—sometimes called "forbidden"—could have an atmosphere with fewer heavier elements than its host star. University of Birmingham astrophysicist Dr. Anjali Piette worked with an international research team to analyze James Webb Space Telescope data from the exoplanet TOI-5205 b. This is a Jupiter-sized planet orbiting a star about four times the size of Jupiter and about 40% the mass of the sun.
A ‘forbidden planet’ the size of Jupiter has astronomers stumped
https://fed.brid.gy/r/https://www.popsci.com/science/giant-forbidden-planet-metal/
Gemini South confirms long-suspected link between the composition of exoplanets and their host stars https://phys.org/news/2026-04-gemini-south-link-composition-exoplanets.html 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology
Gemini South confirms long-suspected link between the composition of exoplanets and their host stars
Astronomers have discovered that a giant planet, WASP-189b, echoes the composition of its host star, providing the first direct evidence of a foundational concept in astrobiology. This discovery was achieved through the first-ever simultaneous measurement of gaseous magnesium and silicon in a planet's atmosphere. The team used the Gemini South telescope, one half of the International Gemini Observatory. The findings are published in the journal Nature Communications.
2026-04-02 12:00:00 UTC (Delta: 2026-03-26)
SATURN
- Distance (km): 1,567,906,565.68 km (-1,242,166.58 km)
- Distance (AU): 10.48 (-0.01)
- Light travel time: 1 h 27 min 9.97 s (-4.14 s)
- Orbital speed: 9.70 km/s (+0.00 km/s)
Image: Shadowcaster
Credit: NASA/JPL/Space Science Institute
RastaC'mon Geeks
If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system
https://www.joshworth.com/dev/pixelspace/pixelspace_solarsystem.html
Wulfy—Speaker to the machinesData shows that #3iAtlas is definitely not a comet, it does not behave like a comet ever has, and the papers reporting the data have given up on trying to match the data into existing comet models.
Every #comet ever observed has its fast outgassing on the sunlit side, pointing away from the Sun. That's thermally mandatory, the hot side produces faster gas, and the gas moves away from the heat source. Decades of data across dozens of comets all show the same pattern. The fast exhaust is always anti-sunward.
3I has it reversed. The fast exhaust is sunward. That directly contradicts thermal sublimation physics.
💥There's no natural heating model that produces faster gas toward the thing heating you💥
The exhaust velocity is also wrong. At 3I's solar distance, every comet on record produces gas at 0.7–0.8 km/s. 3I is at 0.37. Half speed. The CO₂ mass explanation accounts for the number, but no comet has ever shown a CO₂-dominated exhaust profile sustained through perihelion like this. Comets that are CO₂-rich still show water taking over as they get close to the Sun because water ice sublimates aggressively at those temperatures.
The sulfur depletion is also unprecedented. Every comet carries hydrogen sulfide.
💥Every single one💥
3I has none detectable, below the floor of any known cometary measurement.
And the water production at 900% of surface capacity with a locked output temperature that doesn't respond to solar heating: no comet does that either.
Nothing about this object's perihelion behaviour is consistent with any comet ever observed.
World's space agencies have all the data consistent with an #alien #techsignature #interstellar vessel.
#space #solarsystem #visitors #astronomy
michael1-Apr-2026
#Saturn’s magnetic bubble is lopsided compared to #Earth’s
Saturn’s magnetic bubble is lopsided compared to Earth’s
Saturn's magnetic shield is asymmetrical compared to Earth’s, suggests a new study involving University College London (UCL) researchers, and this is likely a result of its fast rotation coupled with the heavy material it pulls around it.