April 14-20, 2025 / Vol 44, No 15 / Hawai`i Island, USA

New Shepard NS-31 Flight April 14 to Take All-Women Crew to Suborbital Space

Six women are prepped to fly aboard the next crewed Blue Origin New Shepard NS-31 flight, aiming for an April 14 liftoff from Corn Ranch, Van Horn, Texas. Though many NS flights have science experiments, this flight focuses on inspiration and education. The women aboard are: Aisha Bowe, a Bahamian-American aerospace engineer; Amanda Nguyen, a civil rights activist and former Nobel Peace Prize nominee, who will become the first Vietnamese and Southeast Asian woman in space; Gayle King, a journalist for CBS News and editor-at-large for the Oprah Magazine; Katy Perry, a global pop star and singer; Kerianne Flynn, a film producer and non-profit supporter; and Lauren Sánchez, an author and philanthropist. In the course of the 11-minute flight, the civilian astronauts will ascend beyond the Kármán line of 100 kilometers, and enjoy several minutes of weightlessness and awe-inspiring views of planet Earth. The New Shepard spacecraft operates entirely autonomously, with no pilots on board. The first woman in space, Valentina Tereshkova, launched on a 70.8-hour flight on June 16, 1963. Sally Ride, the first American woman in space, spent 6 days on Space Shuttle Challenger starting June 18, 1983. As USA, China and India national programs work toward human lunar landings, the answer to “Who will be the first woman on the Moon?” remains an important and exciting prospect for those supporting egalitarian principles. (Image credits: Blue Origin, et al)

MONDAY

Apr 14 — International Space Station, ~415-km LEO: Expedition 72 Commander Aleksey Ovchinin to hand over ISS command to Takuya Onishi on Friday; 10-member crew to become team of 7 for Expedition 73 with departure of Soyuz MS-26 on Saturday; experimenting with new thigh cuff to reduce blood flow to head / eyes.

Apr 14 — Tiangong Space Station, ~390-km LEO: Shenzhou 19 Taikonaut trio have about 2 weeks left of their 6-month mission, continuing work with protein crystallization, studies on five types of cells, and with Xiao Hang (Little Space) – an AI robot; Shenzhou 20 three-member crew expected to launch April 24 (China National Space Day).

★ Apr 14 —  Blue Origin, Launch New Shepard / NS-31, Corn Ranch, Van Horn TX: First all-woman crew in 11 flights, Aisha Bowe, Amanda Nguyen, Gayle King, Katy Perry, Kerianne Flynn, Lauren Sánchez; 08:30 CDT.

★ Apr 14 —  United Launch Alliance, Launch Atlas V551 / Project Kuiper (KA-01), SLC41, Cape Canaveral SFS FL: Part of planned internet satellite constellation of 3,276, in 98 orbital planes; 13:00-17:34 HST.

o Apr 14-17 — Université de Lorraine, University of Connecticut, Florida International University, et al, Metz, France / Online: International Workshop on Granular Materials & Regolith: Granular Materials Fundamentals, Applications and Concepts for Extraterrestrial Regolith, including the Moon, Mars and Asteroids.

TUESDAY

☆ NET Apr 15 — Advanced Rocket Technologies, Launch Horus-4 / unknown payload, Etlaq Spaceport, Duqm, Oman: Inaugural flight of Horus-4 rocket by London-based company.

● Apr 15 — American Astronomical Society, International Astronomical Union, The Galactic Inquirer, Slooh Remote Telescopes Service, Online: Submissions due for Astronomical Science Writing Contest.

● Apr 15-18 — AIAA, Johns Hopkins University / Applied Physics Laboratory, Laurel MD: AIAA Defense and Security Forum (AIAA DEFENSE Forum); discussing policy issues pertaining to the aerospace and defense community.

☆ Apr 15 — Apollo Asteroid 2023 UH: Near-Earth Flyby (0.022 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: Mercury(E), Venus (E), Saturn (E); Evening Planets: Mars (SW), Jupiter (W), Uranus (W).

LUCY: 12 Years, 11 Asteroids and Satellites, 1 Spacecraft

NASA space probe Lucy has a 12-year mission. The probe will visit C-type Donaldjohanson asteroid, diameter 4km, in the main belt on April 20, having flown by S-type asteroid Dinkinesh, diameter 0.7km, and confirmed it has a satellite, Selam. Paleoanthropologist Donald Johanson discovered in Ethiopia the skeleton known as Lucy. As the Lucy fossil glimpsed origins of humanity, the Lucy mission hopes to enhance understanding  of Solar System origins. Lucy is the first spacecraft to the Trojan asteroids, originating in the outer solar system, flung inwards, and now trapped in Lagrange points of Jupiter’s orbit. Lucy will do first-ever flybys of P-type asteroids, Polymele in 2028, diameter 21km (plus satellite Shaun), Patroclus and Menoetius in 2033, diameters 113km and 104km, and will offer a look at their dark, reddish surfaces believed to be rich in organics. They are proposed by scientists to be ancient remnants from the early stages of the Solar System. D-type are also very dark, very red, also thought to be rich in organics and carbon, and flybys will be made of Leucus, 40km, and Orus, 51km. The 1st Trojan flyby will be of C-type asteroid Eurybates and its satellite Queta, members of the only known collisional asteroids in the Trojans. The 2033 flybys end the mission, but Lucy is expected to orbit the Sun for many 100,000s or millions of years. (Image credits: NASA, Donald Johanson at Lucy build)

Ongoing…

☾ Jan 15 – Jun 5+ — Hakuto-R M2 Resilience, Elliptical Lunar Orbit: ispace Japan lander due on Moon June 5 at Mare Frigoris, ~60.5°N, 4.6°W; carries ~5-kg micro-rover and other payloads; launched from FL Jan 15.

● Mar 10 – Apr 16 — American Institute of Aeronautics and Astronautics (AIAA), Online / Reston VA: Course: Design of Space Launch Vehicles; 36 classroom hours, 3.6 CEU/PDH; US$695-1,695.

 Mar 28 – Apr 20 — The Kennedy Center, Washington DC: EARTH to SPACE: Arts Breaking the Sky; international festival will feature Apollo 16 Moonwalker Charlie Duke, many showings of Tom Hanks The Moonwalkers in 360° format, Astrolab FLEX lunar rover, other lunar / space presentations.

☆ NET Apr — Gilmour Space, Launch Eris Block 1 / Test flight, Eris Pad, Bowen Orbital Spaceport, Queensland, Australia: First flight of 3-stage orbital rocket to deliver up to ~300 kg to LEO; first launch from Bowen Spaceport.

WEDNESDAY

★ Apr 16 —  Northrop Grumman Space Systems, Launch Minotaur IV / NROL-174, SLC8, Vandenberg SFB CA: Mission patch has phrase I Viam Inveniam, “I will find the way”; 09:00-11:26 HST.

● Apr 16 — Federal Aviation Administration, Online / Cape Canaveral FLMeetings to obtain public input on SpaceX application to increase launch and landing cadence at SLC-40, Cape Canaveral SFS FL up to 120 per year, and up to 34 landings per year.

☾ Apr 16 — Moon: 0.51° SE of Antares, 14:00.

☆ Apr 16 — Mercury: 0.68° SE of Neptune, 14:00.

☆ Apr 16 — Mars: At aphelion, 1.6661 AU from Sun, 12:00.

THURSDAY

● Apr 17 — NASA, Online / Houston TX: NASA Aerospace Safety Advisory Panel (ASAP) 2nd quarter 2025 public briefing.

☆ Apr 17 — Mercury: At aphelion, 0.4667 AU from Sun, 03:00.

☆ Apr 17 — Apollo Asteroid 2017 RN16: Near-Earth Flyby (0.028 AU)

FRIDAY

★ Apr 18 — Transiting Exoplanet Survey Satellite (TESS), Highly Elliptical HEO: Space telescope for NASA Explorers program, designed to search for exoplanets using the transit method in an area 400 times larger than that covered by Kepler / K2 mission, reaches 7th full year / enters 8th year in space today; launched April 18, 2018.

● Apr 18 — NASA, Center for the Advancement of Science in Space, American Astronautical Society, Online / Seattle WA: Abstracts due for ISSRDC 2025, to be held Jul 28-31.

SATURDAY

Apr 19 — International Space Station, Soyuz MS-26 Undocking, ~415-km LEO: Expedition 72 Commander Aleksey Ovchinin, Cosmonaut Ivan Vagner and Astronaut Donald Pettit to undock from ISS (17:30 EDT), deorbit and landing in Kazakhstan (20:23 EDT); event livestreaming available.

● Apr 19 — Ad Astra Kansas Foundation, Washburn University Dept. of Physics/Astronomy, Topeka KS: 2025 Ad Astra Kansas Space Celebration family event; observatory tours, astronaut team building, astrophysicist Bharat Ratra presentation; free, 13:00-16:00 CDT.

☆ Apr 19 — Apollo Asteroid 2025 FY22: Near-Earth Flyby (0.024 AU)

SUNDAY

Apr 20 — Lucy, 52246 Donaldjohanson Flyby, Inner Main Asteroid Belt: NASA spacecraft to encounter 11 asteroids will perform its first flyby today / come within 922 km of 4-km diameter 52246 Donaldjohanson asteroid.

Apr 20 — SpaceX, Launch Falcon 9 / Dragon CRS-2 SpX-32, LC-39A, KSC FL: 32nd commercial resupply services from SpaceX to deliver cargo, experiments to International Space Station; 22:15 HST.

☾ Apr 20 — Moon: At last quarter, 15:36.

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,...