#satellite — Public Fediverse posts

Grünes Band✅ Meine beiden Kurierdienste wachsen Technisch zusammen ➡️ #satellite als zentrale TelefonNummer und ein neuer #threema Kanal als Messenger plus #posteo Mail.

#marktKutsche Bad Säckingen
#hotzenwaldKurier uff'm Wald 🌲
#RadLogistik #grüneZustellung

A WEEK IN ORBITAL HOARDING
35/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 34,855 (+36)
🛰 Active spacecraft: 16,877 (+39)
💤 Nonoperational spacecraft: 3,009
🚀 Rocket bodies: 2,421
❓ Unknown objects: 54
🗑️ Debris >10 cm: 12,494 (-3)

27 cataloged objects were officially confirmed as reentered since the last update.

#Orbit #Satcat #CelesTrak #Satellite #SpaceDebris #SpaceJunk #OrbitalHoarding

Satellite view of Ohio — 2026-08-23
Imagery: MODIS_Terra_CorrectedReflectance_TrueColor
https://worldview.earthdata.nasa.gov/?v=-84.82,38.4,-80.52,42.32&l=MODIS_Terra_CorrectedReflectance_TrueColor&t=2026-08-23

Imagery: NASA GIBS #satellite #NASA #EarthObservation

Listening.

Two satellite dishes listening to anything you are saying.
These dishes are mostly used for shipping as it is part of the Inmarsat system. Other purposes? Who knows?

#photography #MastoArt #satellite #Burum #spy #art #sunset

The #Zhuque3 rocket successfully landed on August 19, 2026, but collapsed shortly after touchdown due to a fire 🔥 https://www.youtube.com/watch?v=8hQtD_EXq6w caused by residual propellant. It’s unclear when the booster fell over, but #satellite imagery shows that it stood for at least four hours https://www.china-in-space.com/p/zhuque-3-booster-damaged-after-first

SPCX Holds Steady at the Zero Line: Consolidation Mode Activated

Space Exploration Technologies Corp (SPCX) closed at 136.97 on Aug 21 ’26, up 2.22%, after a choppy stretch that saw it bounce off the 106.71 support and repeatedly test the 147.81 resistance. The latest candlestick sits right on the N-dicator: 0 marker—signaling classic consolidation sentiment—as price digests the mid-August volume spike and digests the prior pullback. Bulls and bears are currently in a temporary stalemate; the next decisive break will likely set the tone for September.

@rms people here say they will take them down themselves by a certain date, it could end up as a court case, 4th amendment violations? #ianal #satellite pics only please

"The public must write to their senators and representatives calling for a congressional mandate for regulation of commercial #space activity. We must vote for candidates who support protections for astronomy and #DarkSkies and rigorously scrutinize claims of safety and public benefit by companies seeking to launch #satellite constellations with devastating potential impacts."

https://www.houstonchronicle.com/opinion/outlook/article/satellites-night-sky-stars-22397123.php

#SpaceEnvironment #SpacePolicy #Opinion

Satellite view of Ohio — 2026-08-20
Imagery: MODIS_Terra_CorrectedReflectance_TrueColor
https://worldview.earthdata.nasa.gov/?v=-84.82,38.4,-80.52,42.32&l=MODIS_Terra_CorrectedReflectance_TrueColor&t=2026-08-20

Imagery: NASA GIBS #satellite #NASA #EarthObservation

new #antenna, much better #data from DISCO-2 #satellite

colleagues Gianluca Feltrin and Julian Priest on the roof

#DISCO = the Danish Students' #Cubesat Project

#ITUniversity of #Copenhagen #SDU #AU

#greenland #earthObservation #IndustriensFond

Comparing DESIS Hyperspectral and Landsat 10 Simulated Superspectral Data for Crop Type Classification in California’s Central Valley
--
https://doi.org/10.3390/rs18142282 <-- shared paper
--
https://www.usgs.gov/publications/comparing-desis-hyperspectral-and-landsat-10-simulated-superspectral-data-crop-type <-- shared USGs publication page
--
H/T @USGS
“How can we get better at classifying crops from space? 🛰️🌽
Some types of satellite imagery are better at distinguishing crops than others. A USGS study compared two approaches and found one produced more accurate crop maps.
Here's what the researchers found:
• Hyperspectral imagery achieved 86% accuracy, compared to 75% for simulated superspectral imagery.
• Using just 14 carefully selected hyperspectral bands produced nearly the same results as using all 60 DLR Earth Sensing Imaging Spectrometer (DESIS) bands, showing those wavelengths contain much of the information needed to distinguish crop types.
• Using superspectral imagery on the upcoming Landsat 10 mission will allow for routine tracking of crops and enhance finer crop mapping.
• The findings help scientists identify which wavelengths provide the most useful information for crop mapping and future remote sensing applications.
Better crop maps will help governments and scientists track global agriculture, monitor the current crop season, and study agricultural trends…”
--
“HIGHLIGHTS:
• What are the main findings?
- The 14 DESIS hyperspectral narrowbands (10 nm) aligned with the Landsat 10 (formerly Landsat Next) spectral dataset produced similar accuracy results to the full 60-band DESIS hyperspectral dataset for classifying crop types. These 14 DESIS narrowbands resulted in higher accuracy than the 14 simulated Landsat 10 superspectral broadbands.
- When using DESIS narrowbands, Support Vector Machine (SVM) resulted in higher accuracy than Random Forest (RF).
• What are the implications of the main findings?
- A carefully selected set of 14 DESIS hyperspectral narrowbands (10 nm) can achieve classification accuracy comparable to those obtained using all 60 DESIS narrowbands across the 400–1000 nm range. These 14 strategically positioned narrowbands classified crop types with higher classification accuracy than the corresponding 14 Landsat 10 superspectral broadbands within the same spectral range.
- This study underscores the importance of multi-temporal imagery across the full crop-growing season for achieving more detailed and accurate crop type classifications. Such temporal coverage is more feasible with the planned Landsat 10 routine acquisition of broadband imagery than with task-based hyperspectral collections…”
#hyperspectral #superspectral #optimalbands #randomforest #supportvectormachine #agriculture #crops #croptype #classifaction #croplands #California #CentralValley #GIS #spatial #mapping #remotesensing #earthobservation #imagery #DESIS #Landsat #Landsat10 #satellite #spatialanalysis #spatiotemporal #global #AI #machinelearning #model #modeling #SupportVectorMachine #SVM #RandomForest #RF #GoogleEarthEngine
@USGS

RE: https://mastodon.social/@ieeespectrum/117050218926124861

“When a #satellite demises, it's still there in the #atmosphere in the form of small particles of #aluminum, and we don’t know what these particles actually do in the atmosphere.” Most of this destruction happens at altitudes between 60 and 80 kilometers—too high for balloons 🎈 and planes to reach, but too low for satellites to sample.

#Ignorosphere #SpaceDebris #University #Stuttgart

Satellite view of Ohio — 2026-08-17
Imagery: MODIS_Terra_CorrectedReflectance_TrueColor
https://worldview.earthdata.nasa.gov/?v=-84.82,38.4,-80.52,42.32&l=MODIS_Terra_CorrectedReflectance_TrueColor&t=2026-08-17

Imagery: NASA GIBS #satellite #NASA #EarthObservation

A shoebox-sized #satellite could expose hidden #nuclearweapons in #space
Neutrons streaming from a bomb could reveal its presence from 4km away. If a nuclear weapon were aboard, inspector would detect neutrons produced when high-energy protons in the vicinity crashed into the weapon.
Since 1967, nuclear weapons in space have been prohibited by the #OuterSpaceTreaty, which has been ratified by 118 countries, including Russia and the United States.
https://www.sciencenews.org/article/satellite-nuclear-weapons-space
https://archive.ph/It95C

What the heck is a "preliminary design review" for a satellite deorbit mission to relocate or dispose of dead or uncooperative satellites .... and you get paid ~ $8M for doing the review. https://www.investing.com/news/company-news/firefly-aerospace-wins-contract-for-satellite-deorbit-design-review-93CH-4859089 #Space #DesignReview #FireflyAerospace #SatelliteDeorbit #Satellite #SpaceDevelopmentAgency #SDA #DefenseInnovationUnit #MissionDesign #OrbitalDebris

'Acceleration without fuel:' Revolutionary superconducting thruster harnesses Earth's magnetic field in 1st orbital test
"We are essentially looking to remove all reliance on Earth's resources so that we can build a sustainable industry in space."
New Zealand startup #ZennoAstronautics completed first orbital test of its "Supertorquer" a shoebox-sized superconducting magnet system that uses #solar power and Earth's magnetic field to help control a #satellite without fuel.
https://www.space.com/technology/acceleration-without-fuel-revolutionary-superconducting-thruster-harnesses-earths-magnetic-field-in-1st-orbital-test

Two more Territories and one Province left for #satellite #canadaward

“For years, subscribers to #satellite services have installed dishes at their homes for watching TV or connecting to broadband.

Smartphone customers, by contrast, aren't normally required to set up a basestation and cover the related property fees.

#Musk wants to change all that through a widely ridiculed plan of #Starlink.

Experts with anything positive to say about it seem to be rarer than Mars landings.”

It will fail.

https://www.lightreading.com/5g/small-cells-big-mess-why-musk-s-spacex-telecom-plan-won-t-work

A WEEK IN ORBITAL HOARDING
34/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 34,819 (+28)
🛰 Active spacecraft: 16,838 (+29)
💤 Nonoperational spacecraft: 3,009
🚀 Rocket bodies: 2,421 (+1)
❓ Unknown objects: 54 (+4)
🗑️ Debris >10 cm: 12,497 (-6)

20 cataloged objects were officially confirmed as reentered since the last update.

#Orbit #Satcat #CelesTrak #Satellite #SpaceDebris #SpaceJunk #OrbitalHoarding

Scientists turn #Starlink into a giant scanner for #Earth’s upper #atmosphere
A new way to “see” Earth’s elusive upper atmosphere could help make increasingly crowded orbits safer.
Using orbital data from roughly 1,200 Starlink satellites, they reconstructed changes in atmospheric density about 500 kilometers above Earth. The approach could sharpen #satellite tracking and help reduce the growing risk of collisions in increasingly crowded orbits. https://www.sciencedaily.com/releases/2026/08/260812015212.htm #space

Ok, take a deep breath! It is still in the research phase - BUT - this is an impressive demonstration.

Chinese researchers showed how a 2-watt laser at 36,000 km above Earth can transmit data down to earth at 1 Gbps. Note this is 5X the transmission speed of SpaceX Starlink. https://space4peace.org/chinese-satellite-pulverizes-starlink-with-a-2-watt-laser-from-36000-km-above-earth/ #Space #China #SpaceX #Starlink #Lasers #Laser #LasersinSpace #Optics #Satellite #SatelliteCommunication #Communications #Telecommunications

New CNTR Fact Sheet: Strenghtening Space Resilience, Creating Dependencies
Sarah McKee ( @PRIF ) explains how space resilience might be achieved & discusses space systems as critical infrastructure. Read in #openaccess ⬇️
https://www.cntrarmscontrol.org/publications/publication/space-resilience

#space #satellite #criticalinfrastructure #resilience

"Do we lose something when we no longer get lost?"

Shayla Love for The New Yorker: https://www.newyorker.com/news/annals-of-inquiry/gps-and-the-lost-art-of-getting-lost

#Longreads #Books #GPS #Navigation #Maps #Directions #Satellite

#Crop diversity contributes to resilient and sustainable #agricultural systems, supporting #biodiversity, #soil health and #climate adaptation.
Explore the new @EUAgri brief providing an assessment of crop diversity based on the #Copernicus High Resolution Crop Type #satellite #dataset, complemented with the Farm Accountancy Data Network farm-level data📊
https://x.com/euagri/status/2082138692089454696?s=12&t=rUVa0ijJxwykE_n36sZtBg