August 11-17, 2025 / Vol 44, No 32 / Hawai`i Island, USA
Lunar Broadcast Precursor: Terrestrial Edition

Arianespace Plans Launch Aug 12, Europe Advances Spaceports and Lunar Missions

Arianespace, a multinational company headquartered in France, is scheduled to launch the Ariane 62 on Ariane 6’s second commercial flight (VA2640) from Guiana Space Centre, French Guiana. The payload is Metop-SG A1, the first in a series of three second- generation weather satellites for EUMETSAT under the European Union Copernicus program. Europe primarily launches its rockets from Guiana in South America, though other launch locations in Europe are developing. Isar Aerospace launched a test of its Spectrum vehicle in March from Andøya Spaceport in Northern Norway (69°N, 15°E). In Sweden, the Esrange Space Center has been operational since 1966, and the 2023-inaugurated Spaceport Esrange provides full launch capabilities for standardized polar and high-inclination orbits. United Kingdom based Orbex is planning for an inaugural flight of the Prime rocket from SaxaVord Spaceport (60°N 0°W) in Shetland, Scotland this year. Germany is planning to develop sea launch capabilities from the North Sea, lifting off from the German-Offshore Spaceport Alliance (GOSA) mobile platform. European Space Agency is building the European Service Module for Orion crew capsule, developing modules for the lunar Gateway, the Argonaut European Large Logistics Lander (EL3), and working with ispace-Europe and other entities on the MAGPIE Lunar Exploration Rover Mission. (Image Credits: ESA, NASA, P. Carril, Arianespace)

MONDAY

Aug 11 — International Space Station, ~415-km LEO: Expedition 73 seven members include 4 new from Dragon Crew-11, with 1st-time ISS resident Cosmonaut Oleg Platonov being subject for respiratory study and using VR to adjust to microgravity; new Commander of station until December is Cosmonaut Sergey Ryzhikov; research on blood circulation and muscular system are ongoing; new project is examining alternatives to antibiotics for treating bacterial infections.

Aug 11 — Tiangong Space Station, ~390-km LEO: Shenzhou 20 three-member crew to have LEO neighbor of space hospital to conduct cutting-edge research in space life and health support, a project of Shenzhen University of Advanced Technology and Shanghai Engineering Center for Microsatellites; having a crew member from Pakistan progresses, augured by launch from China of Pakistan Remote-Sensing Satellite (PRSS-1).

☾ Aug 11 — Moon Enterprise News: Weekly lunar advisories coming soon…

Aug 11-14 — NASA, Mountain View CA: 2025 PI Launchpad: From Science Idea to NASA Mission In-Person Workshop; for those working or studying in any NASA Science Mission Directorate discipline who would like to submit a NASA space mission proposal.

Aug 11 — Perseid Meteor Shower Peak: Appearing to radiate from constellation Perseus, shower can produce up to 100 meteors per hour, which are fast, bright and frequently leave persistent trains, 14:00.

Aug 11 — Venus: 0.86° S of Jupiter, 21:00.

☆ Aug 11 — Apollo Asteroid 2025 OR12: Near-Earth Flyby (0.055 AU)

= Terrestrial and o = International terrestrial events in local time;  = Moon, = Space and = International space events in Hawai’i time unless noted.

Weekly Planet Watch Morning Planets: Venus (E), Jupiter (E), Saturn (S), Uranus (E), Neptune (S); Evening Planet: Mars (W), Saturn (E).

Astrodynamics Specialists Will Navigate to Boston August 10-14

The 2025 AAS / AIAA Astrodynamics Specialist Conference is August 10-14 in Boston MA to focus on guidance, navigation and control (GNC) of spacecraft, and more, and therefore expects ~400 specialists, a number rising since 1966 beginnings. 40 technical sessions each have 4-8 presentations of papers with up to 8 authors. Subjects include: Intuitive Machines IM-1 and IM-2 lunar landers; Orbit determination / estimation / stability; AI / robotics for spaceflight; Lagrange / cislunar / lunar orbits / constellations; Camera calibration using star fields; Comet interception; Interplanetary mission design; Spacecraft GNC / collision avoidance; Trajectory optimization; In-space assembly / manufacturing. 42 posters, most with multiple researchers, include removing space debris with LASER devices. Monday, 3 hours honor the memory of César Ocampo (pictured), originator of Copernicus trajectory design software. Robert Braun of JHUAPL will give the lecture named for Netherlands-born Dirk Brouwer of Yale. John V Breakwell Student Award acknowledges the Swiss-born Stanford professor. Sponsor Draper will provide GNC for ispace APEX lunar lander headed to Schrödinger NET 2027. Organizing committees of American Astronautical Society (AAS) and American Institute of Aeronautics and Astronautics (AIAA) include ~65 scientists from ~20 states and a dozen countries. (Image credits: Universidad Sergio Arboleda, AAS, AIAA, Hyatt, Draper)

Ongoing…

● Jun 10 – Sep 30 — Adventures in Astronomy, Online / Bridgeport CT: Adventures in Astronomy-Approaching Infinity; 17 Zoom classes with George Roush.

o Jun 30 – Aug 22 — International Space University, Korean Federation of Science and Technology Societies (KOFST), Hanyang University ERICA Campus, Seoul, S Korea: 37th Space Studies Program (SSP).

o Aug 1 – 11 — Chiba Institute of Technology, Tokyo, Japan: Meteorites to touch, Hayabusa 2 life-size model, more; at Skytree Town Campus; free.

o Aug 1 – Sept 7 — CNSA, Hong Kong Science Museum, et al, Hong Kong, China: On display are near- and far-side lunar samples from Chang’E-5 and -6 and Chang’E-6 return capsule and parachute.

Aug 10-13 — Small Satellite Conference, et al, Salt Lake City UT: 39th Annual Small Satellite Conference; at Salt Palace Convention Center; US$350-$1,000; winners of student competition receive up to US$10,000.

● Aug 10-14 — American Astronautical Society, American Institute of Aeronautics and Astronautics, Boston MA: AAS / AIAA Astrodynamics Specialist Conference; at Hyatt Regency; ~US$600-1,000.

TUESDAY

★ Aug 12 — Parker Solar Probe, Heliocentric Orbit: NASA craft reaches 7th full year / enters 8th year in Space, launched on this day in 2018; in 2024 came within ~6.16M km of the Sun, ~7 times closer than any prior spacecraft, traveling faster than any other human-made object, ~692,000 km/hr.

 Aug 12 — Arianespace, Launch Ariane 62 / Metop-SG A1, Launch Area 4, Guiana Space Centre, French Guiana: 2nd generation weather satellites for EumetSat.

Aug 12 — United Launch Alliance, Launch Vulcan VC4S / USSF-106, SLC-41, Cape Canaveral SFS FL: To geosynchronous orbit; includes NTS-3 navigation satellite.

● Aug 12 — NASA, Online / Washington DC: Proposals Due: Artemis III Participating Scientist Program (A3PSP); for scientists to supplement expertise of Artemis III Geology team existing members.

● Aug 12-15 — Arizona State University, Ronald Greeley Center for Planetary Studies, Tempe AZ: Planetary Data Training Workshop; GIS software training emphasizing terrestrial planets and icy satellite surface research.

● Aug 12-15 — LPI, USRA, Houston TX: Modern Scanning Electron Microscopy (SEM) Techniques Workshop; theoretical and hands-on planetary sample analysis.

☾ Aug 12 — Moon: 3.6° NNW of Saturn, 03:00; 2.56° NNW of Neptune, 04:00.

☆ Aug 12 — Apollo Asteroid 2025 OR4: Near-Earth Flyby (0.008 AU)

WEDNESDAY

● Aug 13 — NASA, Online / Washington DC: Proposals Due: Moon and Mars proximity relay communication and navigation systems with high bandwidth and high reliability.

● Aug 13-16 — Astronaut Scholarship Foundation, Houston TX: Innovators Symposium & Gala; featuring the Neil Armstrong Award of Excellence.

★ Aug 13 — SpaceX, Launch Falcon 9 / Starlink Group 10-11, SLC-40, Cape Canaveral SFS FL: 28 satellites for space-based Internet communications.

★ Aug 13 — SpaceX, Launch Falcon 9 / Starlink Group 17-5, SLC-4E, Vandenberg SFB CA: 24 satellites for space-based Internet communications.

☾ Aug 13 — Moon: At perigee (distance 369,295 km), 08:04.

☆ Aug 13 — Aten Asteroid 2025 OJ10: Near-Earth Flyby (0.061 AU)

THURSDAY

 Aug 14 — SpaceNews, Online / Alexandria VA: Webinar: Space Based Solar Power; with reps from Mankins Space Tech and The Aerospace Corp; 13:00-14:00 EDT.

☆ Aug 14 — Amor Asteroid 2025 ME89: Near-Earth Flyby (0.061 AU)

FRIDAY

Aug 15 — Juno, Perijove 75 / 74th Science Flyby, Jupiter Orbit: NASA craft to perform Jupiter flyby during Perijove 75, its 75th close flyby of Jupiter and 74th science flyby with instruments turned on.

o Aug 15 — European Space Agency, Les Houches School of Physics, Online / Les Houches, France: Registrations and grant requests due for JUICE (Jupiter Icy Moons Explorer) school.

 Aug 15 — University of Hawai’i at Mānoa, Honolulu HI / Online: Abstracts Due: 2nd Lunar Polar Volatiles Conference; to be held Nov 12-14; includes special session on Artemis missions.

o Aug 15-17 — Chinese Society of Astronautics, National Center for International Research on Space Optical Instrument, et al, Dunhuang, China: 2025 International Symposium of Space Optical Instrument and Application; to promote international cooperation; held alternate years in the Netherlands and China since 2014.

☾ Aug 15 — Moon: At last quarter, 19:13.

☆ Aug 15 — Apollo Asteroid 2021 PJ1: Near-Earth Flyby (0.011 AU)

SATURDAY

☾ Aug 16 — Moon: 0.96° N of Pleiades, 07:00; with Uranus and Pleiades within circle of diameter 5.21°, 08:00; 5.2° N of Uranus, 09:00.

★ NET Aug 16 — SpaceX, Launch Starship (10th Flight)Starbase, Boca Chica TX: Launch window for Starship Flight Test 10 opens today.

☆ Aug 16 — Apollo Asteroid 2025 CO3: Near-Earth Flyby (0.050 AU)

SUNDAY

★ Aug 17 — SpaceX, Launch Falcon 9 / Starlink Group 17-6, SLC-4E, Vandenberg SFB CA: Satellites for space-based Internet communications.

☆ Aug 17 — Apollo Asteroid 2025 PM: Near-Earth Flyby (0.007 AU)

25 Jul 2026
  • Mission Milestone
Low Earth Orbit (LEO)
NASA astronaut Jessica Meir takes command of ISS during changeover, followed by three Expedition 74 crew members returning to Earth.
26 - 30 Jul 2026
  • Meeting / Conference / Symposium
Whistler, British Columbia, Canada
AAS hosts, and AIAA co-hosts, specifically AAS Space Flight Mechanics Committee and AIAA Astrodynamics Technical Committee. At Hilton Whistler Resort & Spa.
26 Jul 2026
  • Mission Milestone
Low Earth Orbit (LEO)
Sergey Kud-Sverchkov, Sergey Mikayev and Christopher Williams set to undock from ISS in Soyuz MS-28, triggering the start to Expedition 75 with Commander Jessica...
27 Jul 2026
  • Launch
SLC-4E (~35°N), Vandenberg SFB CA, USA
Another batch of 24 satellites for SpaceX's Starlink space-based Internet service.
27 - 28 Jul 2026
  • Meeting / Conference / Symposium
Exeter, United Kingdom
In celebration of the 25th anniversary of the creation of the Astrophysics Group at the University of Exeter, we are pleased to announce the international...
28 Jul 2026
  • Meeting / Conference / Symposium
Online
10:30 ET, Boeing to announce its 2nd quarter 2026 financial results.
29 Jul 2026
  • Space / Astro Events
Moon Orbit
14:37 UTC / 04:37 HST.
29 Jul 2026
  • Launch
Wenchang Space Launch Center, ~19°N, Hainan Island, China
Undisclosed payload on China's Long March 7A rocket from Hainan Island.
29 Jul 2026
  • Launch
Taiyuan Satellite Launch Center (TSLC), ~39°N, Shanxi, China
Unknown payload launching from Launch Complex 9A launch pad.
29 Jul 2026
  • Meeting / Conference / Symposium
Online
Set to launch August 30, this 2pm EDT briefing will feature NASA personnel Shawn Domagal-Goldman, Jackie Townsend, Julie McEnery, and Jeremy Perkins.
30 - 31 Jul 2026
  • Space / Astro Events
Worldwide
Emanating from ~6km-wide comet with 5.3-year Solar orbit, visible in constellation Aquarius near star Delta Aquarii, fast, faint meteors peak on this night, best...
30 - 31 Jul 2026
  • Meeting / Conference / Symposium
London, United Kingdom
The International Research Conference is a federated organization dedicated to bringing together a significant number of diverse scholarly events for presentation within the conference...
30 Jul 2026
  • Launch
SLC-40 (~28°N), Cape Canaveral SFS FL, USA
Launch window opens 03:09am EDT for classified payload to launch for the US National Reconnaissance Office.
31 Jul 2026
  • Meeting / Conference / Symposium
Venice, Italy
to be held December 2-4, 2026 in Venice, Italy. Interstellar space is not the domain of any one discipline. It demands insight from across the...
01 - 09 Aug 2026
  • Meeting / Conference / Symposium
Florence, Italy
Includes ~150 meetings covering the fields of COSPAR Scientific Commissions / Panels / Task Groups, such as SC B: The Earth-Moon System, Planets, and...
02 - 07 Aug 2026
  • Meeting / Conference / Symposium
Fukuoka, Japan
From 02 to 07 August 2026, a few thousand geoscientists across diverse disciplines will gather at the 23rd annual meeting of the Asia Oceania Geosciences...
03 Aug 2026
  • Meeting / Conference / Symposium
Online
Occurring at 12pm ET with NASA, the Canadian Space Agency (CSA), and SpaceX, followed by and 2PM ET briefings with the crew itself: 12...
04 Aug 2026
  • Meeting / Conference / Symposium
Online
Holding its first financial results telecon 4:30pm EDT, after going public on June 12, 2026.
05 Aug 2026
  • Observation / Anniversary
Mars Surface
NASA Curiosity (Mars Science Laboratory) rover surpasses another full year of operations on Mars surface today; launched Nov 26, 2011 – landed Aug 5,...
06 Aug 2026
  • Launch
Andøya Spaceport, ~63°N, Norway
2nd test flight of Isar Spectrum launch vehicle, to carry 5 cubesats to SSO, and ESA "Boost!" experiment: * CyBEEsat (TU Berlin) * TriSat-S...
07 Aug 2026
  • Launch
Tanegashima Space Center, ~30°N, Japan
Japan to launch 04:30 local time the MICHIBIKI No. 7 | Quasi-Zenith Satellite System (QZS-7) navigation satellite.
09 - 25 Aug 2026
  • Meeting / Conference / Symposium
Sun Moon Lake, Taiwan
This international lunar science meeting has two objectives: to provide a platform for leading experts to review recent advances across lunar research, from the...
25 Jul 2026
Low Earth Orbit (LEO)
NASA astronaut Jessica Meir takes command of ISS during changeover, followed by three Expedition 74...
26 - 30 Jul 2026
Whistler, British Columbia, Canada
AAS hosts, and AIAA co-hosts, specifically AAS Space Flight Mechanics Committee and AIAA Astrodynamics Technical...
26 Jul 2026
Low Earth Orbit (LEO)
Sergey Kud-Sverchkov, Sergey Mikayev and Christopher Williams set to undock from ISS in Soyuz MS-28,...
27 Jul 2026
SLC-4E (~35°N), Vandenberg SFB CA, USA
Another batch of 24 satellites for SpaceX's Starlink space-based Internet service.
27 - 28 Jul 2026
Exeter, United Kingdom
In celebration of the 25th anniversary of the creation of the Astrophysics Group at the University...
28 Jul 2026
Online
10:30 ET, Boeing to announce its 2nd quarter 2026 financial results.
29 Jul 2026
Moon Orbit
14:37 UTC / 04:37 HST.
29 Jul 2026
Wenchang Space Launch Center, ~19°N, Hainan Island, China
Undisclosed payload on China's Long March 7A rocket from Hainan Island.
29 Jul 2026
Taiyuan Satellite Launch Center (TSLC), ~39°N, Shanxi, China
Unknown payload launching from Launch Complex 9A launch pad.
29 Jul 2026
Online
Set to launch August 30, this 2pm EDT briefing will feature NASA personnel Shawn Domagal-Goldman,...
30 - 31 Jul 2026
Worldwide
Emanating from ~6km-wide comet with 5.3-year Solar orbit, visible in constellation Aquarius near star Delta...
30 - 31 Jul 2026
London, United Kingdom
The International Research Conference is a federated organization dedicated to bringing together a significant number...
30 Jul 2026
SLC-40 (~28°N), Cape Canaveral SFS FL, USA
Launch window opens 03:09am EDT for classified payload to launch for the US National Reconnaissance...
31 Jul 2026
Venice, Italy
to be held December 2-4, 2026 in Venice, Italy. Interstellar space is not the domain of...
01 - 09 Aug 2026
Florence, Italy
Includes ~150 meetings covering the fields of COSPAR Scientific Commissions / Panels / Task Groups,...