#orbit

Ars Technica Newsarstechnica@c.im
2026-02-05

NASA changes its mind, will allow Artemis astronauts to take iPhones to the Moon arstechni.ca/tCvM #requirements #smartphone #Internet #iphone #Space #orbit #space #moon

Where are we now?wawn
2026-02-03

A WEEK IN ORBITAL HOARDING
06/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 32,866 (+28)
🛰 Active spacecraft: 14,760 (+32)
💤 Nonoperational spacecraft: 3,005 (+3)
🚀 Rocket bodies: 2,400 (-2)
❓ Unknown objects: 53 (+1)
🗑️ Debris >10 cm: 12,648 (-6)

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

A high-contrast dark-mode table titled 'RECENT CONFIRMED REENTRIES'. It lists 34 objects that have decayed from orbit:
 Row 1, Reentered On: 2025-07-20, Launched On: 1999-05-10, Object Name: FENGYUN 1C DEB, NORAD ID: 31617, Type: Debris
 Row 2, Reentered On: 2025-11-18, Launched On: 2000-09-21, Object Name: NOAA 16 DEB, NORAD ID: 41355, Type: Debris
 Row 3, Reentered On: 2025-11-20, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 36064, Type: Debris
 Row 4, Reentered On: 2026-01-20, Launched On: 2022-11-11, Object Name: CZ-6A DEB, NORAD ID: 55881, Type: Debris
 Row 5, Reentered On: 2026-01-25, Launched On: 2023-06-15, Object Name: OBJECT R, NORAD ID: 57019, Type: Spacecraft
 Row 6, Reentered On: 2026-01-26, Launched On: 1994-05-19, Object Name: PEGASUS DEB, NORAD ID: 24165, Type: Debris
 Row 7, Reentered On: 2026-01-26, Launched On: 1991-11-28, Object Name: DMSP 5D-2 F11 DEB, NORAD ID: 28346, Type: Debris
 Row 8, Reentered On: 2026-01-26, Launched On: 2013-09-29, Object Name: POPACS 1, NORAD ID: 39268, Type: Spacecraft
 Row 9, Reentered On: 2026-01-26, Launched On: 2024-03-04, Object Name: LEMUR-2-ROCINANTE, NORAD ID: 59147, Type: Spacecraft
 Row 10, Reentered On: 2026-01-27, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 34429, Type: Debris
 Row 11, Reentered On: 2026-01-27, Launched On: 2019-12-20, Object Name: CZ-4B R/B, NORAD ID: 44888, Type: Rocket body
 Row 12, Reentered On: 2026-01-27, Launched On: 2023-06-15, Object Name: OBJECT E...
Angel MiguelezAngelMiguelez
2026-01-30

Laika
03.11.1957

Laika, die kleine Hündin, die als erstes Lebewesen die Erde umkreiste. Am 3. November 1957 wurde sie an Bord des Raumflugkörpers Sputnik 2 in den Weltraum geschickt.




Where are we now?wawn
2026-01-27

A WEEK IN ORBITAL HOARDING
05/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 32,838 (+130)
🛰 Active spacecraft: 14,728 (+137)
💤 Nonoperational spacecraft: 3,002
🚀 Rocket bodies: 2,402 (-2)
❓ Unknown objects: 52 (-1)
🗑️ Debris >10 cm: 12,654 (-4)

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

A high-contrast dark-mode table titled 'RECENT CONFIRMED REENTRIES'. It lists 20 objects that have decayed from orbit:
 Row 1, Reentered On: 2026-01-02, Launched On: 1999-05-10, Object Name: FENGYUN 1C DEB, NORAD ID: 32355, Type: Debris
 Row 2, Reentered On: 2026-01-17, Launched On: 2000-09-21, Object Name: NOAA 16 DEB, NORAD ID: 42352, Type: Debris
 Row 3, Reentered On: 2026-01-19, Launched On: 2024-01-29, Object Name: STARLINK-31254, NORAD ID: 58892, Type: Spacecraft
 Row 4, Reentered On: 2026-01-19, Launched On: 2025-04-24, Object Name: SHENZHOU-20 (SZ-20), NORAD ID: 63632, Type: Spacecraft
 Row 5, Reentered On: 2026-01-20, Launched On: 2024-11-04, Object Name: ZIMSAT-2, NORAD ID: 61783, Type: Spacecraft
 Row 6, Reentered On: 2026-01-21, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 34400, Type: Debris
 Row 7, Reentered On: 2026-01-21, Launched On: 2024-08-16, Object Name: GAINDESAT-1A, NORAD ID: 60529, Type: Spacecraft
 Row 8, Reentered On: 2026-01-21, Launched On: 1998-11-20, Object Name: GHS-01, NORAD ID: 65733, Type: Spacecraft
 Row 9, Reentered On: 2026-01-22, Launched On: 1995-03-24, Object Name: DMSP 5D-2 F13 DEB, NORAD ID: 40570, Type: Debris
 Row 10, Reentered On: 2026-01-22, Launched On: 2016-06-22, Object Name: BIROS, NORAD ID: 41604, Type: Spacecraft
 Row 11, Reentered On: 2026-01-22, Launched On: 2024-05-07, Object Name: CZ-6C R/B, NORAD ID: 59681, Type: Rocket body
 Row 12, Reentered On: 2026-01-23, Launched On: 2020-10-06, Object Name: ...
2026-01-21

RE: scicomm.xyz/@JohnBarentine/115

#Satellites in #Earth #orbit play a major role in everyday life on Earth and make the global #connectivity via our media possible in the first place. However, the increasing number of satellites in #lowEarthorbit (#LEO) can also #brighten the #nightsky in places and interfere with #astronomical #observations. Degen et al. (2026) recommend #retroreflective #coatings on satellites to #redirect #sunlight in order to reduce brightness.
©this text#StefanFWirth 2026

Ref doi.org/10.1016/j.actaastro.20

dr 🛠️🛰️📡🎧:blobfoxcomputer:davidr@hachyderm.io
2026-01-20

Or really, I should just rewrite this as a VRP, since it is so close to that anyway and the code I have was just a prototype.

#constraintprogramming #python #radar #orbit #scheduling #math #computerscience

dr 🛠️🛰️📡🎧:blobfoxcomputer:davidr@hachyderm.io
2026-01-20

A true Traveling Salesman Problem on top of the Knapsack Problem takes longer than I want to spend (many minutes vs ~10s) and also does more than I want.

A forced-greedy TSP (near neighbors are all scored 1, farther nodes are all scored 0) is much faster and closer to what I want but still longer than I want (~2m)

The solution to a combinatorial problem is not a faster algorithm, it's a smaller problem.

I need to break the TSP into chunks and solve them separately. The difficult thing is that I need to do this while deliberately remaining unaware of the semantics of the nodes for larger architectural reasons.

#constraintprogramming #python #radar #orbit #scheduling #math #computerscience

Where are we now?wawn
2026-01-20

A WEEK IN ORBITAL HOARDING
04/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 32,708 (+21)
🛰 Active spacecraft: 14,591 (+33)
💤 Nonoperational spacecraft: 3,002 (-2)
🚀 Rocket bodies: 2,404 (+3)
❓ Unknown objects: 53 (+1)
🗑️ Debris >10 cm: 12,658 (-14)

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

A high-contrast dark-mode table titled 'RECENT CONFIRMED REENTRIES'. It lists 30 objects that have decayed from orbit:
 Row 1, Reentered On: 2025-10-31, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 39588, Type: Debris
 Row 2, Reentered On: 2026-01-01, Launched On: 2000-09-21, Object Name: NOAA 16 DEB, NORAD ID: 41528, Type: Debris
 Row 3, Reentered On: 2026-01-07, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 34907, Type: Debris
 Row 4, Reentered On: 2026-01-10, Launched On: 1999-05-10, Object Name: FENGYUN 1C DEB, NORAD ID: 31612, Type: Debris
 Row 5, Reentered On: 2026-01-10, Launched On: 2005-07-05, Object Name: CZ-2D DEB, NORAD ID: 35273, Type: Debris
 Row 6, Reentered On: 2026-01-12, Launched On: 1992-12-25, Object Name: SL-16 DEB, NORAD ID: 22357, Type: Debris
 Row 7, Reentered On: 2026-01-12, Launched On: 1999-05-10, Object Name: FENGYUN 1C DEB, NORAD ID: 30532, Type: Debris
 Row 8, Reentered On: 2026-01-12, Launched On: 2021-04-29, Object Name: STARLINK-2511, NORAD ID: 48332, Type: Spacecraft
 Row 9, Reentered On: 2026-01-12, Launched On: 2022-11-11, Object Name: CZ-6A DEB, NORAD ID: 54903, Type: Debris
 Row 10, Reentered On: 2026-01-12, Launched On: 2023-11-11, Object Name: PEARL 1H, NORAD ID: 58265, Type: Spacecraft
 Row 11, Reentered On: 2026-01-13, Launched On: 1992-12-25, Object Name: SL-16 DEB, NORAD ID: 22329, Type: Debris
 Row 12, Reentered On: 2026-01-13, Launched On: 1999-05-10, Object Name: FENGYUN 1C DEB, NORAD ID:...

#FR:
"
Solarstrom aus dem All: Energie-Laser könnten versehentlich Satelliten rösten
"
fr.de/wissen/solarstrom-aus-de

19.1.2026

Und alles mögliche andere. Klassisches SciFi-Szenario bald Realität?

#Laser #Orbit #Raumfahrt #Satelliten #Sonnenenergie #SpaceFlight #Stromerzeugung #UV

ƧƿѦςɛ♏ѦਹѤʞspacemagick
2026-01-17
ƧƿѦςɛ♏ѦਹѤʞspacemagick
2026-01-17
ƧƿѦςɛ♏ѦਹѤʞspacemagick
2026-01-17
ƧƿѦςɛ♏ѦਹѤʞspacemagick
2026-01-17

In Low Earth Orbit Adventures you pilot a little space tug that's the Swiss Army Knife of spaceships... and now you can graffiti it 😁 🚀 🖌️

#LEOAdventures #gaming #spacesim #space #orbit

2026-01-13

📚 Podcast thematisiert Wettrüsten im Weltraum und Deutschlands Position.

• Satelliten liefern strategische Überlegenheit.
• 11KM-Podcast analysiert die aktuelle Lage.
• Fokus auf Vorherrschaft in der Erdumlaufbahn.

tagesschau.de/wissen/weltraum/

#Weltraum #Satelliten #Strategie #Deutschland #Podcast #Orbit

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