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The Signpost: 1 May 2025

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  • Traffic report: Of Wolf and Man
    Television dramas, televised sports, film, the Pope, and ... bioengineering at the top of the list?
* Read this Signpost in full * Single-page * Unsubscribe * MediaWiki message delivery (talk) 22:19, 1 May 2025 (UTC)[reply]

The Signpost: 14 May 2025

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* Read this Signpost in full * Single-page * Unsubscribe * MediaWiki message delivery (talk) 21:59, 14 May 2025 (UTC)[reply]
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The Downlink The WikiProject Spaceflight Newsletter
2025
1 — 30 April
Volume 3 — Issue 4
Spaceflight Project • Project discussion • Members • Assessment • Open tasks • Popular pages • The Downlink
In the News
  • On 1 April, Fram2 became the first crewed mission to enter into a retrograde orbit around Earth's poles.
Article of the month

The Apollo Abort Guidance System (AGS, also known as Abort Guidance Section) was a backup computer system providing an abort capability in the event of failure of the Lunar Module's primary guidance system (Apollo PGNCS) during descent, ascent or rendezvous. As an abort system, it did not support guidance for a lunar landing.

The AGS was designed by TRW independently of the development of the Apollo Guidance Computer and PGNCS.

It was the first navigation system to use a strapdown Inertial Measurement Unit rather than a gimbaled gyrostabilized IMU (as used by PGNCS). Although not as accurate as the gimbaled IMU, it provided satisfactory accuracy with the help of the optical telescope and rendezvous radar. It was also lighter and smaller in size.

Image of the month
Falcon 9 Full Thrust

Starting development in 2014, the Falcon 9 Full Thrust is a variant of the Falcon 9 that is the first orbital rocket to have a first stage successfully land vertically after launch. The stage shown here is from the April 2016 SpaceX CRS-8 mission, after landing on the autonomous spaceport drone ship Of Course I Still Love You.

Members

New Members:

Number of active members: 208. Total number of members: 433.

April Launches
All times stated here are in UTC. See a current list: here.

  1. United States Falcon 9 Block 5 — Fram2 (1 Apr. at 00:46 UTC) (success)
  2. China Long March 2F/G — Shenzhou 20 (24 Apr. at 09:17 UTC) (success)
  3. United States Atlas V 551 — 27 KuiperSats (28 Apr. at 23:01) (success)
  4. United States Firefly Alpha — LM-400 Demo (29 Apr. at 13:37) (launch failure)
 Article Statistics
This data reflects values from 30 April 2025.
Spaceflight articles by quality and importance
Quality Importance
Top High Mid Low NA ??? Total
FA 7 28 15 8 58
FL 3 4 4 11
FM 123 123
A 1 2 2 5
GA 11 27 33 55 1 127
B 15 84 200 221 1 521
C 45 162 581 774 31 1,593
Start 16 144 1,017 2,584 444 4,205
Stub 9 204 2,049 244 2,506
List 10 120 108 236 1 30 505
Category 1,264 1,264
Disambig 47 47
File 223 223
Portal 55 55
Project 109 109
Redirect 2 42 131 1,243 1,418
Template 528 528
NA 1 1
Other 29 29
Assessed 105 579 2,206 6,064 3,623 751 13,328
Unassessed 14 125 139
Total 105 579 2,206 6,078 3,623 876 13,467
Monthly Changes

Since March 2025, four new high-importance, two new mid-importance, twenty new low-importance, and two new NA-importance articles have been created. Four unknown-importance articles have been removed, for a total of 24 new articles. One article has been promoted to Featured Article status. There are also five more B-class articles, eighteen more C-class articles, eleven more Start-class articles, six fewer Stub-class articles, and six more lists.

Special thanks to Neopeius for significantly working on some of the Timeline of spaceflight articles (specifically 1953, 54, 55, and most recently 56). Thanks also to Sotakarhu for table work in the latter.

Discuss & propose changes to The Downlink at The Downlink talk page. To unsubscribe from the newsletter remove your name from the Mailing list.
Newsletter contributors: Ships&Space

MediaWiki message delivery (talk) 04:26, 19 May 2025 (UTC)[reply]

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The Downlink The WikiProject Spaceflight Newsletter
2025
1 — 31 May
Volume 3 — Issue 5
Spaceflight Project • Project discussion • Members • Assessment • Open tasks • Popular pages • The Downlink
In the News
Article of the month
Artist's impression of the Mars Odyssey spacecraft

2001 Mars Odyssey is a robotic spacecraft orbiting the planet Mars. The project was developed by NASA, and contracted out to Lockheed Martin, with an expected cost for the entire mission of US$297 million. Its mission is to use spectrometers and a thermal imager to detect evidence of past or present water and ice, as well as study the planet's geology and radiation environment. The data Odyssey obtains is intended to help answer the question of whether life once existed on Mars and create a risk-assessment of the radiation that future astronauts on Mars might experience. It also acts as a relay for communications between the Curiosity rover, and previously the Mars Exploration Rovers and Phoenix lander, to Earth. The mission was named as a tribute to Arthur C. Clarke, evoking the name of his and Stanley Kubrick's 1968 film 2001: A Space Odyssey.

Odyssey was launched April 7, 2001, on a Delta II rocket from Cape Canaveral Air Force Station, and reached Mars orbit on October 24, 2001, at 02:30 UTC (October 23, 19:30 PDT, 22:30 EDT). As of March 2025, it is still collecting data, and is estimated to have enough propellant to function until the end of 2025. It currently holds the record for the longest-surviving continually active spacecraft in orbit around a planet other than Earth, ahead of the Pioneer Venus Orbiter (served 14 years) and the Mars Express (serving over 20 years), at 24 years, 2 months and 8 days. As of October 2019 it is in a polar orbit around Mars with a semi-major axis of about 3,800 km or 2,400 miles.

Image of the month
International Space Station after LF1

Starting with Zarya in November 1998, the assembly of the International Space Station continued on a regular basis until the Space Shuttle Columbia disaster, which resulted in a nearly three-year pause from November 2002 to July 2005. This image shows the ISS following the installation of the second External stowage platform. ESP-2 was launched on 26 July 2005 on board Discovery as part of STS-114.

Members

New Members:

Number of active members: 209. Total number of members: 434.

May Launches
All times stated here are in UTC. See a current list: here.

  1. United States Starship — 8 Starlink Simulators (27 May at 23:36:28 UTC) (partial failure)
  2. China Long March 4B — Tianwen-2 (28 May at 04:00 UTC) (success)
 Article Statistics
This data reflects values from 30 May 2025.
Spaceflight articles by quality and importance
Quality Importance
Top High Mid Low NA ??? Total
FA 7 28 15 8 58
FL 3 4 4 11
FM 123 123
A 1 2 2 5
GA 11 27 33 55 1 127
B 15 84 200 220 1 520
C 45 163 583 784 32 1,607
Start 16 143 1,017 2,591 444 4,211
Stub 9 205 2,043 245 2,502
List 10 120 108 236 1 33 508
Category 1,266 1,266
Disambig 46 46
File 223 223
Portal 55 55
Project 109 109
Redirect 2 42 132 1,244 1,420
Template 527 527
NA 1 1
Other 28 28
Assessed 105 579 2,209 6,075 3,623 756 13,347
Unassessed 12 123 135
Total 105 579 2,209 6,087 3,623 879 13,482
Monthly Changes

Since April 2025, three new mid-importance, nine new low-importance, and three new unknown-importance articles have been created, for a total of 15 new articles. There is also one less B-class article, 14 more C-class articles, six more Start-class articles, four less Stub-class articles, and three more lists.

Discuss & propose changes to The Downlink at The Downlink talk page. To unsubscribe from the newsletter remove your name from the Mailing list.
Newsletter contributors: Ships&Space

MediaWiki message delivery (talk) 11:50, 11 June 2025 (UTC)[reply]

The Signpost: 24 June 2025

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* Read this Signpost in full * Single-page * Unsubscribe * MediaWiki message delivery (talk) 02:29, 24 June 2025 (UTC)[reply]

Happy Birthday!

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