April 17-23, 2023 / Vol 42, No 16 / Hawai`i Island, USA

SpaceX Poised to Launch Starship, the Largest and Most Powerful Rocket Ever Built

Starship next-generation 2-stage launch vehicle, comprised of Super Heavy rocket (Booster 7) + Starship (Ship 24) second stage with integrated crew / cargo capsule is slated to make its inaugural orbital test flight towards near the end of third week of April per SpaceX CEO Elon Musk. If successful, Starship will break the records for most thrust (39,000 kN / 8,800,000 lbf) set by SLS, the NASA ‘Mega Moon Rocket’ built by ULA, Aerojet Rocketdyne and Northrop Grumman, in November 2022 and height (110.6 m) set by Saturn V in 1967 with 73,000 kN / 16,500,000 lbf takeoff thrust expected to be generated by 33 Raptor engines of Booster 7 at takeoff, propelling the 12-m craft from Starbase in South Texas to a site 100-km NW of Kaua’i, roughly halfway to Northwestern Hawaiian Island of Nihoa. Pacific Missile Range Facility Barking Sands to provide telemetry, optics and radar for soft ocean landing, and the prototype spaceship is expect to be recovered intact. Starship is designed to carry up to 100 people or 100 tons of cargo to the Moon, Mars and other destinations – with refueling assistance from Starship propellant tanker(s). To LEO, Starship is specified to carry 150 tons to LEO in reusable / 250 tons in expendable configuration. This dramatic increase in upmass capability is likely to significantly disrupt the launch market, with per-kg prices expected to be offered in the $50-500 range vs Falcon Heavy, currently the lowest cost provider at $1,400 / kg. (Image Credits: SpaceX)

MONDAY

☆ Apr 17 — International Space Station, ~415-km LEO: Expedition 69 crew members prepare for 2 Russia and 2 USA EVAs occurring over next 2 weeks, planning SS Sally Ride release this week, working with horticulture, cardiovascular, 3D printing experiments.

☆ Apr 17 — Tiangong Space Station, ~390-km LEO: Shenzhou-15 three-member crew continue to work with cargo from Tianzhou 5 which is expected to depart station in May close to Tianzhou 6 launch from Wenchang; planning for TSS EVA #10 underway.

Highlights…

o NewSpace: Relativity Space shifts focus to 82 m tall / 5.5 m diameter Terran R rocket, incorporating traditional metal work on tanks; Rocket Lab moves launch of NASA TROPICS weather-monitoring CubeSats from Wallops to Launch Complex 1 on Māhia Peninsula, NZ due to impending storm season.

☆ Solar System: China Deep Space Exploration Laboratory to lead planetary defense mission targeting 30-m diameter asteroid 2019 VL5 NET 2025; JUICE mission to explore Jupiter and moons begins 8-year journey to Jovian System; BepiColombo monitoring cameras being prepared for 3rd Mercury flyby planned in ~2 months.

☆ Galaxy: Haystack Observatory astronomers see potential for low frequency space-based VLBI with proposed constellation GO-LoW; ASTRON-led study finds 5 FRBs in Triangulum Galaxy utilizing Westerbork Synthesis Radio Telescope; TESS adds to tally of its 326 confirmed exoplanets with TOI-4127 b ‘warm Jupiter’ discovery.

o Global: CNSA / Huazhong University scientists designing Moon surface ‘Clover’ and crater ‘Red Star’ habitats, 1st brick laying expected during Chang’e-8 NET 2028; Austria, Italy, The Netherlands join 10 other nations who pledge to refrain from conducting anti-satellite weapons testing; ISRO, NSIL, IN-SPACe commercial roles going forward clarified under Indian Space Policy 2023.

● USA: 4 volunteers to reside in 3D-printed NASA Crew Health and Performance Exploration Analog in Houston for 1 year starting in June; Makenzie Lystrup now serving as GSFC Director following swearing-in on Pale Blue Dot; NASA new policy may stop naming future missions after people.

● Hawai’i: IfA Astronomer Karen Meech remains agnostic on ‘Oumuamua origin, expects Vera C. Rubin Observatory in Chile to discover up to 1 interstellar object / yr when online NET 2024; 10 – 20 m diameter asteroid 2023 FW13 discovered by PanSTARRS / characterized by CFHT as ‘quasi-satellite’ has 0.18 AU resonance with Earth, expected to remain in proximity until year 3700.

● = Terrestrial and… o = International terrestrial events

☾ = Moon activity

★ = Space and… ☆ = International space / astro events in Hawaii Standard Time unless noted. Add 10 hours to obtain UT (‘Universal Time’).


Weekly Planet Watch – Morning Planets: Saturn (ESE); Evening Planets: Mercury (W), Venus (W), Mars (W), Saturn (ESE)


Europe and Africa Space Resources & NewSpace Conferences Advance International Synergies

The 5th edition of Space Resources Week is being held in Luxembourg and online April 19-21. The first day will have updates from representatives of ESA, NASA, JAXA, CSA-ASC, and Korea Institute of Geoscience and Mineral Resources. Welcoming comments are from (TL-R) Luxembourg Ministry of Economy Franz Fayot, Director of ESRIC Kathryn Hadler and ESA Astronaut Matthias Maurer. Some of the >100 speakers include Bill Nelson, Josef Aschbacher, Clive Neal, Ben Bussey, Kyle Acierno, Giuseppe Reibaldi and Kyla Edison. Talks will cover missions / planning, technologies, enabling infrastructure, commercialization, extracting and using space resources – from the Moon in particular. To the South ~5,000 km, NewSpace Africa Conference 2023 themed Space for Africa’s Socioeconomic Transformation is planned for April 25-28 in Abidjan, Côte d’Ivoire (Ivory Coast). The conference has 92 commercial companies, 7 Foundations / NGOs, 60 public & 19 academic institutions and ~140 speakers participating. Of the 14 Keynotes Hambani Masheleni (African Union Commission) will update on the African space policy and strategy implementation; and Peter Martinez (Secure World Foundation) on policy and regulations for space industry. Led by Temidayo Oniosun (Space in Africa) and Maram Kaire (Senegalese Agency for Space Studies), there will be 4 sessions on African space agencies’ activities including representatives from Libya, Ghana, Egypt, Rwanda, Angola, Tunisia, Mauritius, Gabon, Nigeria, Zimbabwe, Senegal, South Africa, Djibouti, Kenya, Burkina Faso, Uganda, Namibia and Ethiopia. (Image Credits: ESRIC, Luxembourg Space Agency, ESA, Space in Africa, et al)

★ NET Apr 17 — SpaceX, Launch Super Heavy / Starship Orbital Test Flight, Starbase, Boca Chica TX: Super Heavy and Starship launch vehicle to attempt nearly 1 full orbit of Earth (07:00 CDT) culminating with re-entry and splashdown in Pacific ~100 km NW offshore of Kauai.

● Apr 17 — NASA Science Mission Directorate, Online / Washington DC: Responses Due / RFI: New Horizons Interstellar Mission; to determine interested teams science objectives to extend NASA New Horizons mission science beyond FY24.

● Apr 17-20 — Space Foundation, Colorado Springs CO: 38th Space Symposium 2023; space leaders to discuss critical issues affecting all space sectors; at Broadmoor Hotel.

☆ Apr 17 — Amor Asteroid 2023 GM: Near-Earth Flyby (0.021 AU)

☆ Apr 17 — Apollo Asteroid 2023 GU: Near-Earth Flyby (0.027 AU)

☆ Apr 17 — Amor Asteroid 2023 GO: Near-Earth Flyby (0.046 AU)

Continued From…

● Oct 15 – Jun 15, 2023 — International Space Elevator Consortium, Online: Space Elevator Academic Challenge: Improving Humanity’s Future; for students 17-25.

☾ Dec 11 – Apr 25, 2023 — Hakuto-R / ispace Mission 1, Lunar Landing Trajectory: Carrying UAE Rashid 10-kg rover, 0.25-kg JAXA SORA-Q rover, Hakuto-R performing orbital control maneuvers to reach Lunar Orbital Insertion, followed by Moon touchdown nominally ~4.5 months after launch.

● Jan 18 – May 11 — Wichita State University, Wichita KS and Online: 2023 Interstellar Seminar ‘LASI 150G’; 1-credit hour seminar begins today; every Wednesday 14:30-15:20, led by Prof. Mark Schneegurt.

o Feb 24 – May 24 — National Museum of China, Beijing, China: Exhibit Featuring China’s Human, Lunar and Space Program.

☆ NET Apr — Gilmour Space, Launch Eris, Bowen Orbital Spaceport, Queensland, Australia: Inaugural flight of 23-m / 30,000-kg solid fueled rocket, first Australia domestic orbital launch.

● Apr 14-17 — Space Generation Advisory Council, Colorado Springs CO: Space Generation Fusion Forum.

o Apr 16-21 — Committee on Space Research, Singapore: 5th Committee on Space Research (COSPAR) Symposium: Space Science with Small Satellites; supported by Nanyang Technical University and the Office for Space Technology and Industry – Singapore.

TUESDAY

☆ Apr 18 — International Space Station, Expedition 69 Russia EVA #56, ~415-km LEO:  Two Cosmonauts to perform ~6.5-hour spacewalk in Orlan spacesuits; starts 21:00 EDT, live coverage available.

★ 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 5th full year / enters 6th year in space today; launched April 18, 2018.

★ Apr 18 — SpaceX, Launch Falcon Heavy / ViaSat 3 Americas, LC-39A, Kennedy Space Center FL: Falcon Heavy to launch ViaSat 3 Americas broadband communications satellite; two booster to land at Landing Zones 1 and 2; 07:36 EDT.

☆ Apr 18 — Apollo Asteroid 2023 GS: Near-Earth Flyby (0.015)

☆ Apr 18 — Apollo Amor 2023 GR: Near-Earth Flyby (0.047)

WEDNESDAY

★ Apr 19 — SpaceX, Launch Falcon 9 / Starlink 6-2, SLC-40, Cape Canaveral SFS FL: Falcon 9 to launch next batch of Starlink internet satellites for SpaceX of new larger spacecraft design “Starlink V2 Mini”; first stage to land on drone ship in Atlantic Ocean.

o Apr 19-21 — European Space Resources Innovation Centre, the Luxembourg Space Agency, the European Space Agency, and the Luxembourg Institute of Science & Technology, Hybrid / Luxembourg and Online: 2023 Space Resources Week; at LuxExpo.

☆ Apr 19 — Venus: 7.4° N of Aldebaran, 07:00; 0.33° NE of Jupiter, 08:00; New Moon, 18:15.

THURSDAY

● Apr 20-22 — Marshall Space Flight Center, NASA, Huntsville AL: 2023 NASA Human Exploration Rover Challenge; at U.S. Space & Rocket Center.

☆ Apr 20 — Moon: 1.78° SE of Mercury, 23:00.

FRIDAY

☆ Apr 21 — International Space Station, Release Northrop Grumman NG-18 Cygnus Cargo Ship, ~415-km LEO: Cygnus SS Sally Ride cargo ship to be released and disintegrate upon Earth atmosphere reentry, live coverage available for release 07:00 EDT.

● Apr 21 — The Human Space Program, Online: 3rd Space Education Summit; featuring Astronaut Panel and Concurrent Sessions.

☆ Apr 21 — Moon: 1.61° N of Uranus, 03:00; with Mercury and Uranus within circle of diameter 3.86°, 03:00.

☆ Apr 21 — Mercury: 3.8° NW of Uranus, 21:00.

SATURDAY

☆ Apr 22 — ISRO, Launch PSLV / TeLEOS 2, Satish Dhawan Space Center, Sriharikota, India: Polar Satellite Launch Vehicle to launch TeLEOS 2, Singapore ~750-kg synthetic aperture radar Earth observation satellite, built by ST Electronics

o Apr 22 — Earth Day Network, Worldwide: Earth Day; to broaden, diversify & activate the environmental movement worldwide; originally proposed to occur March 21 (first day of Spring) by creator John McConnell.

● Apr 22 — JPL, NASA, Online / Pasadena CA: Public Event: Celebrate Earth Day With Education Resources From NASA.

o Apr 22-27 — Deep Space Exploration Laboratory, University of Science and Technology of China, CNSA, Hefei, Anhui Province, China: 2023 International Conference of Deep Space Sciences; one of the activities conducted during 2023 Space Day of China.

☆ Apr 22 — Lyrid Meteor Shower Peak: Lyrids derived from Comet C/1861 G1 Thatcher with period 415 years, are medium-swift (49 km/sec), often bright with persistent trains and can offer 15-20 per hour; 14:00.

☆ Apr 22 — Moon: 1.72° SE of Pleiades, 02:00.

SUNDAY

o Apr 23-28 — EGU, Hybrid / Vienna, Austria and Online: European Geoscience Union General Assembly 2023.

☆ Apr 23 — Moon: 1.31° N of Venus, 03:00.

25 - 30 Oct 2026
  • Meeting / Conference / Symposium
Spokane WA, USA
At the Spokane Convention Center. The meeting will have a broad scope, with a wide-ranging program of science and workforce topics, and celebrating planetary...
26 - 28 Oct 2026
  • Meeting / Conference / Symposium
Huntsville AL, USA
Convene, connect, and collaborate at the 19th annual von Braun Space Exploration Symposium! This year’s event will spotlight how bold ideas, emerging technologies, and...
27 - 30 Oct 2026
  • Meeting / Conference / Symposium
Bangkok, Thailand
Theme: “Bridging the Asia-Pacific: Advancing a Trusted and Inclusive Space Future”.
27 - 28 Oct 2026
  • Meeting / Conference / Symposium
Oslo, Norway
Themes include: Space & the Arctic; Space & AI; Space & International Collaboration. There is a Student Session, a Technical Session, a Frontier Session,...
28 Oct 2026
  • Meeting / Conference / Symposium
Oslo, Norway
Oslo Spaceport Norway offers monthly a knowledgeable speaker and opportunity for networking, 17:00-20:00 local time; free entry but registration required. Ground Control is for...
28 Oct 2026
  • Launch
SLC-41 (~28°N), Cape Canaveral SFS FL, USA
45 satellites to launch for Amazon Leo, formerly named Project Kuiper. This LEO mega constellation will offer broadband internet access with 3,276 satellites.
29 Oct 2026
  • Mission Milestone
Low Earth Orbit (LEO)
Astronauts Anil Menon and Joshua Kutryk will perform a 6.5-hour EVA to completely install and deploy iROSA #7 on the 2A power channel. Once...
31 Oct 2026
  • Meeting / Conference / Symposium
Jakarta, Indonesia
Occurring 31 October from 09:00-11:00 local time (16:00-18:00 HST, 19:00-21:00 PDT, 22:00-24:00 EDT on 30 October), this Galaxy Forum will be in hybrid format...
01 Nov 2026
  • Meeting / Conference / Symposium
Wenchang, Hainan, China
Originally planned around this date for Wenchang, China -- TBC (to be confirmed); As the only professional association for astronauts, ASE supports the advancement of...
02 Nov 2026
  • Mission Milestone
Low Earth Orbit (LEO)
Today marks another full year of continuous Human occupation of ISS; first component Zarya launched Nov 20, 1998, occupation began Nov 2, 2000.
02 - 06 Nov 2026
  • Meeting / Conference / Symposium
Tokyo, Japan
Coordinating Division Division C Education, Outreach and Heritage The IAU Symposium on Innovative Research and Techniques in Astronomy Communication will take place from November...
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  • Observation / Anniversary
Nationwide USA
Change clocks back 1 hour from Daylight Saving to Standard Time; does not include Hawai’i, Arizona (except the Navajo Nation), American Samoa, Guam, Northern...
02 - 06 Nov 2026
  • Meeting / Conference / Symposium
Florence, Italy
ESWW is the main annual event in the European Space Weather and Space Climate calendar. It is an international meeting organised annually within the...
02 - 06 Nov 2026
  • Meeting / Conference / Symposium
Tokyo, Japan
IAU Symposium: IAUS409 - A Journey Towards Effective Astronomy Communication; online and at National Astronomical Observatory of Japan, 2-21-2 Osawa Mitaka, Tokyo. Topics include:...
03 Nov 2026
  • Launch
Launch Complex 1, ~39°S, Mahia Peninsula, New Zealand
iQPS Launch 9, an Earth observation satellite with Synthetic aperture radar for Japan-based imaging company iQPS, to launch on "The Sea God Surveys" mission...
04 - 05 Nov 2026
  • Meeting / Conference / Symposium
Brasília, Brazil
At the National Museum of the Republic, the first SWF Summit in Latin America.
05 Nov 2026
  • Mission Milestone
Low Earth Orbit (LEO)
Menon and Kutryk will exit the Quest airlock again to install iROSA #8 on the 3B power channel. Once Spacewalk 101 concludes on November...
05 Nov 2026
  • Launch
SLC-4E (~35°N), Vandenberg SFB CA, USA
Launch window 10:34am - 2:34pm local time for the 15th batch of classified satellites for a reconnaissance constellation built by SpaceX and Northrop Grumman...
09 - 10 Nov 2026
  • Meeting / Conference / Symposium
Washington DC, USA
Expecting senior government and executives from NASA, Firefly, Blue Origin to discuss innovation, competitive advantages and a "space industrial revolution in LEO". Capped at...
09 Nov 2026
  • Launch
Launch Complex 1, ~39°S, Mahia Peninsula, New Zealand
iQPS Launch 10, an Earth observation satellite with Synthetic aperture radar for Japan-based imaging company iQPS, to launch on “The Mountain God Rises” mission...
11 - 13 Nov 2026
  • Meeting / Conference / Symposium
Salta, Argentina
Promoting the New Space Economy: The first major national meeting of the space, technology and scientific industries. Three days to connect science, industry and...
13 Nov 2026
  • Observation / Anniversary
Near-Rectilinear Halo Orbit / Cislunar Space
NASA 12-U CubeSat Capstone acting as a pathfinder for planned International Lunar Gateway surpasses another year around Moon today; launched in 2022.
25 - 30 Oct 2026
At the Spokane Convention Center. The meeting will have a broad scope, with a wide-ranging...
Spokane WA, USA
26 - 28 Oct 2026
Convene, connect, and collaborate at the 19th annual von Braun Space Exploration Symposium! This year’s...
Huntsville AL, USA
27 - 30 Oct 2026
Theme: “Bridging the Asia-Pacific: Advancing a Trusted and Inclusive Space Future”.
Bangkok, Thailand
27 - 28 Oct 2026
Themes include: Space & the Arctic; Space & AI; Space & International Collaboration. There is...
Oslo, Norway
28 Oct 2026
Oslo Spaceport Norway offers monthly a knowledgeable speaker and opportunity for networking, 17:00-20:00 local time;...
Oslo, Norway
28 Oct 2026
45 satellites to launch for Amazon Leo, formerly named Project Kuiper. This LEO mega constellation...
SLC-41 (~28°N), Cape Canaveral SFS FL, USA
29 Oct 2026
Astronauts Anil Menon and Joshua Kutryk will perform a 6.5-hour EVA to completely install and...
Low Earth Orbit (LEO)
31 Oct 2026
Occurring 31 October from 09:00-11:00 local time (16:00-18:00 HST, 19:00-21:00 PDT, 22:00-24:00 EDT on 30...
Jakarta, Indonesia
01 Nov 2026
Originally planned around this date for Wenchang, China -- TBC (to be confirmed); As the only...
Wenchang, Hainan, China
02 Nov 2026
Today marks another full year of continuous Human occupation of ISS; first component Zarya launched...
Low Earth Orbit (LEO)
02 - 06 Nov 2026
Coordinating Division Division C Education, Outreach and Heritage The IAU Symposium on Innovative Research and...
Tokyo, Japan
02 Nov 2026
Change clocks back 1 hour from Daylight Saving to Standard Time; does not include Hawai’i,...
Nationwide USA
02 - 06 Nov 2026
ESWW is the main annual event in the European Space Weather and Space Climate calendar....
Florence, Italy
02 - 06 Nov 2026
IAU Symposium: IAUS409 - A Journey Towards Effective Astronomy Communication; online and at National Astronomical...
Tokyo, Japan
03 Nov 2026
iQPS Launch 9, an Earth observation satellite with Synthetic aperture radar for Japan-based imaging company...
Launch Complex 1, ~39°S, Mahia Peninsula, New Zealand