July 7-13, 2025 / Vol 44, No 27 / Hawai`i Island, USA

14 Humans in Space Represent 7 Countries Prioritizing Peace, International Collaboration and Science

International Space Station Expedition 73 seven members and four Axiom-4 mission Astronauts work together in Low Earth Orbit at least until the beginning of this week. At any given time at least 200 experiments are ongoing at ISS, and Axiom  is set to accomplish ~60 scientific studies and activities representing 31 countries (including USA, India, Poland, Hungary, Saudi Arabia, Brazil, Nigeria, UAE, and nations across Europe). These experiments will enhance global knowledge in human research, Earth observation, and life, biological and material sciences. Expedition 73 includes members from USA, Russia and Japan. The Ax-4 crew has members from India, Poland, and Hungary: Shubhanshu Shukla is the 1st national Vyomanaut for India since 1984, Sławosz Uznański of ESA is the 1st Polish Astronaut since 1978, and Tibor Kapu is the 1st national Hungarian Astronaut since 1980. In a slightly lower altitude orbit, the Tiangong Space Station currently hosts 3 Taikonauts from China. CMSA announced that perhaps as soon as Shenzhou 21, launching in October, there may be participation with Taikonauts from China’s Special Administrative Regions of Hong Kong and Macau. Following this, China plans to welcome its first international guest to Tiangong, a Pakistan citizen. Eventual physical expansion of Tiangong will allow for further international visitors and experiments. (Image credits: ISS partners, Axiom, CMSA, CNSA, CCTV, NASA)

MONDAY

Jul 7 — International Space Station, ~415-km LEO: Expedition 73 seven-member crew and four members of Axiom-4 mission work on dozens of new experiments for international organizations and interacting with students from around the globe; AX-4 crew may undock station later this week after 2-week mission complete; though NASA ISS tracking website is no longer, ISS is making visible passes this week and can be tracked via Heavens-Above.

Jul 7 — Tiangong Space Station, ~390-km LEO: Shenzhou 20 three-member crew checking exterior shielding installations and modifications after performing second EVA last week; working with experiments involving a Raman spectrometer, streptomyces bacteria, exercise tests; expecting arrival of next cargo via Tianzhou-9 early next week; recently participated in ‘Tiangong Classroom Event’ involving 300 students from Hungary.

★ Jul 7 — SpaceX, Launch Falcon 9 / Starlink Group 10-28, SLC-40, Cape Canaveral SFS FL: Next batch of Starlink satellites to launch for LEO mega-constellation.

o Jul 7-11 — International Astronomical Union, University of Melbourne, Melbourne, Australia: IAU Symposium 399: Indigenous Astronomy in the Space Age.

Jul 7-11 — Space Foundation, Colorado Springs CO: Searching the Stars Summer Cosmic Adventures; with astronomy and telescopes for campers 7-12 years old, US$225.

☾ Jul 7 — Moon: 0.42°SE of Antares, 09:00.

☆ Jul 7 — Amor Asteroid 2025 MO: Near-Earth Flyby (0.017 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 (ENE), Saturn (E), Neptune (E); Evening Planets: Mars (W).

Space Month July Sees Effort to Increase Understanding of the Pluto System

At 5,000,000,000 km from Earth, a trip to Pluto takes over 9 years with a slingshot boost from Jupiter and 12 years without. Sunlight takes 5.5 hours to get there. Pluto diameter is about half the width of USA in North America, ~2250 km. Discovered in 1930 by Clyde Tombaugh of Kansas, in 2006 it was declared Pluto might have objects cross its orbital path and thus was categorized a dwarf planet. Also in 2006, NASA interviewed Venetia Burney, who at age 11 in 1930 suggested the name Pluto. Her great uncle Henry Madan named Mars moons Phobos and Deimos. Charon, largest of 5 known Pluto moons, is about half  Pluto size, proportionally larger than any other Solar System moon. NASA New Horizons spacecraft was the first and so far only to approach the Pluto system, closest on July 14, 2015. This year July 14-18, researchers will share knowledge gained since then using data from New Horizons, James Webb and Hubble, on all aspects of the Pluto system and dwarf planets of the Kuiper Belt. Conveners are Lunar and Planetary Institute, Universities Space Research Association, Johns Hopkins University Applied Physics Laboratory, NASA, and Southwest Research Institute. Includes July 14 evening reception with Pluto Flyby team members, July 16 public presentation with team members. Cost $110-440, students, professionals, in-person, online. (Image credits: NASA, JHUAPL, SwRI; CW from L: Burney, Pluto from 768,000 km and “heart” called Tombaugh Regio, Tombaugh with 9-in homemade telescope, Pluto eccentric orbit and Kuiper Belt)

Ongoing…

● May 27 – Jul 25 — USRA Lunar and Planetary Institute, Houston TX: Exploration Science summer intern program; activities will support Artemis missions.

● Jun 1 – Jul 19 — Astronaut Scholarship Foundation, Online / Orlando FL: Astronaut Challenge; aiming to raise US$74,000 for 74 Astronaut Scholars.

● Jun 2 – Aug 10 — University of Hawai’i Institute for Astronomy, Islands of Hawai’i, O’ahu, Maui: Paid research internship for undergraduate students.

● 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 Jul 6-11 — European Association of Geochemistry, Geochemical Society, Prague, Czech Republic: 2025 Goldschmidt Conference.

TUESDAY

● Jul 8 — American Institute of Aeronautics and Astronautics Greater Huntsville Section, Online / Huntsville AL: Appreciating NASA’s Roadmap Visualizations: Dr. Clive Kerr, University of Cambridge; on Zoom.

☆ Jul 8 — Aten Asteroid 2019 AE3: Near-Earth Flyby (0.097 AU)

WEDNESDAY

☆ NET Jul 9 — China Rocket Co, Launch Jielong-3  / Payload TBA, Floating Barge, Yellow Sea, China: Sixth launch of commercial Jielong-3 rocket, also known as Smart Dragon-3, with payload to be announced.

☆ Jul 9 — Apollo Asteroid 2019 NW5: Near-Earth Flyby (0.038 AU)

THURSDAY

Jul 10 — NASA Johnson Space Center, Online / Houston TX: NASA Sets Briefings for SpaceX Crew-11 Mission to Space Station.

● Jul 10 — United States House Committee on Appropriations, Washington DC: House Appropriations Committee to mark up FY2026 Commerce-Justice-Science bill (includes NASA and NOAA).

o Jul 10 — International Space University USA Alumni Association Washington DC Chapter, Online: Space Café featuring Bradley Cheetham of Advanced Space.

☾ Jul 10 — Moon: Full Buck Moon, 10:37.

FRIDAY

● Jul 11 — Beyond Earth Institute, NYC NY: Zoom webinar You’re Gonna Need Juice for That; Establishing Infrastructure in Space; 13:00-14:30 EDT.

☆ Jul 11 — Amor Asteroid 2025 MD89: Near-Earth Flyby (0.037 AU)

SATURDAY

● Jul 12 — Northrop Grumman (NG), Torrance CA: Aerospace Summer Games; 21st year of sports competition among employees of NG, SpaceX, Boeing, Pratt & Whitney, NASA Armstrong, et al.

☆ Jul 12 — Amor Asteroid 2025 MG1: Near-Earth Flyby (0.033 AU)

SUNDAY

Jul 13 — Juno, Perijove 74 / 73rd Science Flyby, Jupiter Orbit: NASA craft to perform Jupiter flyby during Perijove 74, its 74th close flyby of Jupiter and 73rd science flyby with instruments turned on.

☆ Jul 13 — Venus: 3.2°N of Aldebaran, 07:00.

☆ Jul 13 — Apollo Asteroid 2012 RR16: Near-Earth Flyby (0.062 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,...