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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 23 years, 9 months and 4 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

[edit]
Admins arrested in Belarus.
Pardon our alliteration!
A get-out-of-jail card!
And other new research publications.
Holy men and not-as-holy movies.
Get your self-nomination in by July 2nd!
After two years RuWiki fails to thrive.
With some sweet-and-sour sauce!
Every thing you need to know about the Wikimedia Foundation?
Egad!
* Read this Signpost in full * Single-page * Unsubscribe * MediaWiki message delivery (talk) 02:26, 24 June 2025 (UTC)[reply]

The Signpost: 18 July 2025

[edit]
Endowment tax form, Wikimania, elections, U4C, fundraising and a duck!
And how do we know?
Five-year journey comes to healthy fruition.
Wikimedians from around the world will gather in person and online at the twentieth annual meeting of Wikimania.
As well as "hermeneutic excursions" and other scientific research findings.
The report covers the Foundation's operations from July 2023 - June 2024
A step towards objective and comprehensive coverage of a project nearly too big to follow.
Drawn this century!
How data from the Wikipedia "necessary articles" lists can shed new light on the gender gap
Annual plans, external trends, infrastructure, equity, safety, and effectiveness. What does it all mean?
Rest in peace.
Wouldn't it be nice without billionaires, scandals, deaths, and wars?
If you are too blasé for Mr. Blasé and don't give a FAC.
* Read this Signpost in full * Single-page * Unsubscribe * MediaWiki message delivery (talk) 07:48, 18 July 2025 (UTC)[reply]
[edit]
The Downlink The WikiProject Spaceflight Newsletter
2025
1 — 30 June
Volume 3 — Issue 6
Spaceflight Project • Project discussion • Members • Assessment • Open tasks • Popular pages • The Downlink
In the News
Article of the month

Gaganyaan-1 (from Sanskrit: gagana, "celestial" and yāna, "craft, vehicle") will be the first uncrewed test flight of the Gaganyaan programme, with launch tentatively planned for Q4 2025.

The launch was originally scheduled for December 2020, then in December 2021, but it was delayed due to the COVID-19 pandemic. The flight plan was finally ready by April 2022 and the launch is expected to take place in early 2025, after the TV-D1, TV-D2, TV-D3 and TV-D4. It was proposed in April 2022 that the crew module should be depressurized, something kept in the final planning.

The Gaganyaan spacecraft will be launched, with the humanoid robot Vyommitra, by a Human-rated LVM 3 from Satish Dhawan Space Centre and inserted into a 170 x 408 km orbit. The circularisation maneuver will be performed at the third orbit. The landing should follow the same pattern as the TV-D1.

Image of the month
Hybrid-Propellant Rocket Fuel

Rocket engines typically use one of two types of propellant: Solid or liquid. Hybrid-propellant rockets use a combination of these two forms of fuel, and lack some of the disadvantages of both. Their specific impulse is usually between solid-propellant and liquid-propellant rockets. The image shown here is of a 3D-printed grain, designed for a small hybrid rocket engine which would be used to demonstrate rocket combustion. On the left are two helical fuel ports, on the right a de Laval nozzle.

Members

New Members:

Number of active members: 210. Total number of members: 436.

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

  1. United States Falcon 9 Block 5 — 26 Starlink (13 Jun. at 01:30) (success)
  2. Russia Angara A5 — 2 Kosmos (19 Jun. at 03:00) (success)
  3. United States Falcon 9 Block 5 — Axiom Mission 4 (25 Jun. at 06:31) (success)
  4. Japan H-IIA — GOSAT-GW (28 Jun. at 16:33:03) (success)
 Article Statistics
This data reflects values from 30 June 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 1 4
GA 11 27 33 56 1 128
B 15 84 200 223 4 526
C 45 164 586 788 37 1,620
Start 16 144 1,015 2,600 446 4,221
Stub 8 205 2,037 245 2,495
List 10 120 109 237 1 36 513
Category 1,268 1,268
Disambig 47 47
File 222 222
Portal 55 55
Project 109 109
Redirect 2 42 134 1,248 1,426
Template 527 527
NA 1 1
Other 26 26
Assessed 105 580 2,211 6,088 3,627 769 13,380
Unassessed 9 122 131
Total 105 580 2,211 6,097 3,627 891 13,511
Monthly Changes

Since May 2025, one new high-importance, two new mid-importance, ten new low-importance, four new NA-importance, and twelve new unknown-importance articles have been created, for a total of 29 new articles. There is also one fewer A-class article, one more GA-class article, six more B-class articles, 13 more C-class articles, ten more Start-class articles, seven fewer Stub-class articles, and five 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) 00:34, 23 July 2025 (UTC)[reply]

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