Lmst

2025-12-13 12:00:00 UTC (Delta: 2025-12-06)

NEPTUNE
- Distance (km): 4,448,811,908.68 km (+17,810,779.76 km)
- Distance (AU): 29.74 (+0.12)
- Light travel time: 4 h 7 min 19.64 s (+59.41 s)
- Orbital speed: 5.47 km/s (-0.00 km/s)

Image: Neptune Scooter
Credit: NASA/JPL

#Neptune #Space #SolarSystem

This photograph of Neptune was reconstructed from two images taken by NASA Voyager 2. At the north top is the Great Dark Spot, accompanied by bright, white clouds that undergo rapid changes in appearance.

THE WEEKLY SPIN
50/2025

#SolarSystem #OrbitalMechanics #Earth #Moon #Mars

A spider-like scar haunts Jupiter's moon Europa — and scientists think they know why

https://fed.brid.gy/r/https://www.space.com/astronomy/jupiter/spider-like-scar-on-europa-may-be-frozen-trace-of-salty-subsurface-water

3I/ATLAS Is Acting Wrong: Astronomers Admit We’ve Never Seen This Before. Read More
https://t.co/1TWASS2Ail

#Space #Science #astronomy #Mars #solarsystem #planets #spaceexploration #NASA #esa #jameswebb #SpaceX #nature

2025-12-12 12:00:00 UTC (Delta: 2025-12-05)

URANUS
- Distance (km): 2,779,228,035.76 km (+5,649,334.28 km)
- Distance (AU): 18.58 (+0.04)
- Light travel time: 2 h 34 min 30.51 s (+18.84 s)
- Orbital speed: 6.71 km/s (+0.00 km/s)

Image: Hubble Finds Many Bright Clouds on Uranus
Credit: NASA/JPL/STScI

#Uranus #Space #SolarSystem

A recent NASA Hubble Space Telescope view reveals Uranus surrounded by its four major rings and by 10 of its 17 known satellites.

Large Drainage Systems Produced Half Of Mars’ Ancient River Sediment
--
https://doi.org/10.1073/pnas.2514527122 <-- shared paper
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https://www.thebrighterside.news/post/scientists-discover-16-giant-river-networks-on-ancient-mars-where-life-could-have-thrived/ <-- shared technical media article
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#water ##hydrology #dynamic #planet #Mars #extraterrestrial #ecosystems #drainage #landform
#drainageways #drainagesystems #Martian #terrain #geomorphology #geomorphometry #catchments #fluvia #pluvial #river #sediment #solarsystem #sedimentarybasins #life #habitable #sedimenttransport #topography #erosion #impact #crater #GIS #spatial #mapping #remotesensing #spacecraft #MRO #marsobservation #exploration #martian #MarsAttack

Die EUROPA-PARK Show 2012 | ACSOLAR #018

https://makertube.net/w/tMYy5RhueaCPGZrMFRFVDN

3I/ATLAS Is Acting Wrong: Astronomers Admit We’ve Never Seen This Before

#Space #Science #astronomy #Mars #solarsystem #planets #spaceexploration #NASA #esa #jameswebb #SpaceX #nature

Scientists map of old Mars river basins for the 1st time. These could be great places to search for ancient life

https://fed.brid.gy/r/https://www.space.com/astronomy/mars/scientists-map-of-old-mars-river-basins-for-the-1st-time-these-could-be-great-places-to-search-for-ancient-life

Interstellar comet 3I/ATLAS caught on camera in new images from Hubble Space Telescope and JUICE Jupiter probe

https://fed.brid.gy/r/https://www.space.com/astronomy/comets/interstellar-comet-3i-atlas-caught-on-camera-in-new-images-from-hubble-space-telescope-and-juice-jupiter-probe

2025-12-11 12:00:00 UTC (Delta: 2025-12-04)

SATURN
- Distance (km): 1,402,934,615.87 km (+17,126,101.65 km)
- Distance (AU): 9.38 (+0.11)
- Light travel time: 1 h 17 min 59.69 s (+57.13 s)
- Orbital speed: 9.66 km/s (+0.00 km/s)

Image: Saturn in Color
Credit: NASA/JPL/Space Science Institute

#Saturn #Space #SolarSystem

Saturn and its rings completely fill the field of view of Cassini's narrow angle camera in this natural color image taken on March 27, 2004. This is the last single 'eyeful' of Saturn and its rings achievable with the narrow angle camera on approach to the planet. From now until orbit insertion, Saturn and its rings will be larger than the field of view of the narrow angle camera.

Color variations between atmospheric bands and features in the southern hemisphere of Saturn, as well as subtle color differences across the planet's middle B ring, are now more distinct than ever. Color variations generally imply different compositions. The nature and causes of any compositional differences in both the atmosphere and the rings are major questions to be investigated by Cassini scientists as the mission progresses.

The bright blue sliver of light in the northern hemisphere is sunlight passing through the Cassini Division in Saturn's rings and being scattered by the cloud-free upper atmosphere.

Two faint dark spots are visible in the southern hemisphere. These spots are close to the latitude where Cassini saw two storms merging in mid-March. The fate of the storms visible here is unclear. They are getting close and will eventually merge or squeeze past each other. Further analysis of such dynamic systems in Saturn's atmosphere will help scientists understand their origins and complex interactions.

Moons visible in this image are (clockwise from top right): Enceladus (499 kilome...

Un astéroïde étrange, SC79, frôle le Soleil — sa trajectoire atypique intrigue les astronomes et pourrait révéler des secrets du système solaire. https://blogs.futura-sciences.com/feldmann/2025/12/08/2025-sc79-letrange-asteroide-qui-orbite-tres-pres-du-soleil/ #Space #Astrophysics #SC79 #Innovation #SolarSystem

NASA just lost contact with a Mars orbiter, and will soon lose another one https://arstechni.ca/YD5E #planetaryscience #LockheedMartin #solarsystem #Science #Space #MAVEN #Mars #NASA

1st human missions to Mars should hunt for signs of life, report says https://www.space.com/astronomy/mars/1st-human-missions-to-mars-should-hunt-for-signs-of-life-report-says 🪐 #SolarSystem #AlienLife #Extraterrestrials #Space #Science

Uranus may have more in common with Earth than we thought, 40-year-old Voyager 2 probe data shows

https://fed.brid.gy/r/https://www.space.com/astronomy/uranus/uranus-may-have-more-in-common-with-earth-than-we-thought-40-year-old-voyager-2-probe-data-shows

2025-12-10 12:00:00 UTC (Delta: 2025-12-03)

JUPITER
- Distance (km): 653,379,504.84 km (-10,056,208.35 km)
- Distance (AU): 4.37 (-0.07)
- Light travel time: 36 min 19.44 s (-33.54 s)
- Orbital speed: 13.06 km/s (-0.01 km/s)

Image: Jupiter - Colors on the Wind
Credit: Enhanced image by Björn Jónsson (CC-NC-SA) based on images provided courtesy of NASA/JPL-Caltech/SwRI/MSSS.

#Jupiter #Space #SolarSystem

In this view of Jupiter, NASA's Juno spacecraft captures swirling clouds in the region of the giant planet's northern hemisphere known as "Jet N4."

Jupiter spins once every 10 hours, and this fast rotation creates strong jet streams, separating its clouds into dark belts and bright zones that stretch across the face of the planet. More than a dozen prevailing winds sweep over Jupiter, some reaching more than 300 miles per hour (480 kilometers per hour) at the equator.

The raw image was taken on Sept. 11, 2019 at 8:31 p.m. PDT (11:31 p.m. EDT), as Juno performed its 22nd close flyby of Jupiter. At the time the image was taken, the spacecraft was about 7,540 miles (12,140 kilometers) from the cloud tops at a latitude of 45 degrees.

Hear dust devils on Mars crackle with electricity in new NASA Perseverance rover video

https://fed.brid.gy/r/https://www.space.com/astronomy/mars/hear-dust-devils-on-mars-crackle-with-electricity-in-new-nasa-perseverance-rover-video

[How did our #SolarSystem form?] When and how did the #planets form in the disk of gas and dust surrounding our #Sun?

To answer these fundamental questions, Daniel Price, Professor of Astronomy at Monash University, observed numerous distant star systems using the Atacama Large Millimeter/submillimeter Array (#ALMA) of the @esoastronomy . He will present the results of his work to Irapians this Thursday morning: https://www.irap.omp.eu/event/how-do-you-make-a-solar-system-like-ours/

How do you make a solar system like ours?

It's been fun watching this large cluster of sunspots cruise across the sun and change shape over the past several days. It's possible there may be some aurora activity tonight, but not for me ☁️

#sun #sunspots #aurora #timelapse #astrophotography #solarsystem #telescope #touptek #skywatcherUSA