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Today

    • Friday

     — Zhenwei International Exhibition Group,
    Shenzhen, China

    27th China Hi-Tech Fair (CHTF)

    At Shenzhen World Exhibition & Convention Center (Bao'an); 400,000+ expected to attend. (CASC) is scheduled to unveil its commercial space ...
    — CountFromAbove, European Space Agency (ESA),
    Bremen, Germany

    Startup Startcamp Bremen SPACE

    "From Idea to Startup in 54 Hours". At Digital Industry Hub Bremen, Konrad-Zuse-Straße 6a 28359 Bremen, Germany. Limited to 50 ...
    €5 – €100

    Saturday

     — American Institute of Aeronautics and Astronautics (AIAA) San Francisco Section,
    Mountain View CA, USA

    AIAA San Francisco Section Annual Banquet

    At Moffett Field Museum, which may be viewed before and after the banquet
    $20 – $40
    — Rocket Lab,
    SLC-2, Wallops Flight Facility WA, USA

    Launch Haste / VAN

    Sub-orbital launch under Rocket Lab’s Hypersonic Accelerator Suborbital Test Electron (HASTE) program. Wallops Flight Facility is on Wallops Island east ...

    Sunday

     — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Artemis 1, 2nd Observation of Mission

    As USA and its international partners work toward Artemis 2 crewed mission around the Moon, Space Launch System and Artemis ...
    — Comet Tempel-Tuttle (55P),
    Worldwide

    Leonids Meteor Shower Peak

    From Comet Tempel-Tuttle (55P) dust cloud, peak rate 15 per hour. Moon is 9% full.
    — SpaceX,
    SLC-4E, Vandenberg SFB CA, USA

    Launch Falcon 9 / Sentinel-6B

    Sentinel-6B extends Sentinel series into a 4th decade of measuring sea levels to ~3cm for ~90% of world oceans and ...

    Monday

     — Lunar and Planetary Institute (LPI), Universities Space Research Association (USRA),
    Online

    Outer Planets Assessment Group Meeting

    Includes updates on Europa Clipper, JUICE, Juno, New Horizons, JAXA Mission to Saturn Workshop; Online only.
    Free
    — Dubai Airshow, United Arab Emirates Space Agency (UAESA), Airbus,
    Dubai, United Arab Emirates

    Dubai Airshow 2025

    “Space” is one of 9 conference tracks. One speaker is Andreas Heitmann, Program Director, SpaceFounders, a space-tech accelerator, supporting 70+ ...

    Tuesday

     — T-Minus Engineering B.V.,
    Spaceport Nova Scotia, Canada

    Launch Barracuda hypersonic test platform

    Dutch company T-Minus Engineering aims for suborbital launch of Barracuda hypersonic test platform; launch window open November 18 daily through ...
    — International Astronomical Union (IAU),
    Online

    Workshop: The Definition of Moon Time

    The Consultative Committee on Time & Frequency Task Group on Moon Timing is organizing an online workshop on the definition ...
    — Smarter Shows Ltd, German Aerospace Center (DLR), Italian Space Agency (ASI),
    Bremen, Germany

    Space Tech Expo Europe 2025

    Join over 10,000 professionals from the entire space supply chain. Meeting face-to-face plays a crucial role in propelling the space ...
    — Japan Aerospace Exploration Agency (JAXA), Philippine Space Agency (PhilSA),
    Cebu City, Philippines

    Asia-Pacific Regional Space Agency Forum (APRSAF-31)

    The APRSAF-31 will be held in Cebu City, Philippines on 18 November to 21 November 2025, under the theme “Empowering ...

    Wednesday

     — China Aerospace Science and Technology Corporation (CASC),
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    Launch Long March 8A / Unknown Payload

    Launch window open 21:00-21:17 China Time.
    — International Lunar Observatory Association (ILOA Hawai'i),
    Online

    ILOA Galaxy Forum Hawai’i 2025 Kamuela

    15:30-18:30 HST; Please RSVP to info@iloa.org to join the ILOA Galaxy Forum and learn more about Hawai'i lunar and space ...
    — National Aeronautics and Space Administration (NASA),
    Online

    Planetary Sample Science Seminar

    11:00-12:00 MST; Presentation by Scott Eckley of NASA Johnson Space Center: Utilization of X-ray computed tomography during the preliminary examination ...
    — Foothill College, Astronomical Society of the Pacific, SETI (Search for Extraterrestrial Intelligence) Institute,
    Los Altos CA, USA

    Lecture: The Search for Life on Saturn’s Intriguing Moon Enceladus

    Silicon Valley Astronomy Lecture Series, Celebrating its 26th anniversary, Presents Dr. Alfonso Davila (NASA Ames Research Center) for a free, ...
    — Canadian Space Agency (CSA-ASC),
    Online

    Workshop on a Lunar Rover Mission

    Conducted in French. Students will vote to made critical decisions about a Moon mission. Developed in a collaboration among Canadian ...

    Thursday

     — SPACETIDE, Japan Aerospace Exploration Agency (JAXA), Philippine Space Agency (PhilSA),
    Cebu, Philippines

    Space Industry Connect: Business Matching Event at APRSAF-31

    Join “Space Industry Connect” Bridging the Asia-Pacific Space Ecosystem at APRSAF-31 in Cebu As a program partner, SPACETIDE is supporting ...
    — China National Space Administration (CNSA),
    China (Zhongguo)

    Shenzhou-1, 26th Observation

    As China and international partners plan permanently occupied International Lunar Research Station and next-gen rockets for Solar System Complete exploration, ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Swift Spacecraft Begins Next Year in Space

    Surpassing another year of operations in space today, launched in 2004, Swift is observing gamma-ray bursts & their afterglows in ...

    Friday

     — Institute of Geology and Geophysics at Chinese Academy of Sciences (CAS), Department of Earth and Planetary Sciences at the University of Hong Kong,
    Hong Kong, China

    International Lunar Sample Research Symposium 2025

    Announcement International Lunar Sample Research Symposium 2025 (http://www.ilsrs.org)  After decades of lunar exploration since the Apollo era, lunar samples have ...

    Saturday

     — Innospace,
    Alcântara Space Center, Brazil

    Launch HANBIT-Nano / Spaceward

    Innospace of Korea to use 1st launch of HANBIT-Nano to send to SSO 5 satellites from Brazil space agency AEB ...

    Sunday

     — National Aeronautics and Space Administration (NASA),
    Kennedy Space Center Visitor Complex FL, USA

    Fly With An Astronaut

    Steve Frick, Space Shuttle Atlantis Commander (STS-122) and Pilot (STS-110), describes his route to become an astronaut and personal accounts ...
    $206

    Monday

    Tuesday

     — American Institute of Aeronautics and Astronautics (AIAA) Space Resources Technical Committee,
    Online

    From Prospecting to Product: 5 Years of ISRU Research at ESRIC

    Kathryn Hadler of European Space Resources Innovation Centre (ESRIC) presents on In-Situ Resource Utilization, followed by Q&A. Will be recorded ...
    Free

    Wednesday

     — Space Faculty, World Robot Olympiad, Aramco,
    Marina Bay Sands / Sands Expo and Convention Centre , Singapore

    Expand Space: A deep tech playground to spark your passion to profession

    Introducing youth to artificial intelligence, virtual reality, space, robotics. Includes WRO 2025: International Final events; follows regional robot competitions worldwide, ...

    Thursday

     — Korea Aerospace Research Institute (KARI),
    Naro Space Center, 34.43°N, Goheung, Korea

    Launch Nuri (KSLV-2) / CAS500-3

    Earth observation satellite to SSO for Korea Ministry of Science, and Information and Communication Technology (ICT) industry. In time zone ...
    — Roscosmos State Corporation,
    Baikonur Cosmodrome, Kazakhstan

    Launch Soyuz 2.1a / Progress MS-28

    Will take crew to the International Space Station: cosmonauts Commander Sergey Kud-Sverchkov, Sergey Mikayev and Oleg Platonov, and NASA Astronaut Christopher ...

    Friday

     — National Aeronautics and Space Administration (NASA),
    Kennedy Space Center Visitor Complex FL, USA

    Kennedy Space Center Elite VIP Tour

    Includes: Private bus tour behind NASA’s gates, making stops at iconic Kennedy Space Center landmarks. Pending spaceflight operations stops may include outside the Vehicle Assembly ...
    $190

    Saturday
    Mars Surface

    Autumn Equinox for Mars North Hemisphere

    The northern hemisphere's autumn equinox on Mars marks the beginning of the autumn season in the northern hemisphere and coincides ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Hubble Space Telescope Visible Pass Over Hawai’i

    Appearing at brightest magnitude 0.9, traveling from SW to E, Hubble Space Telescope will appear over Hawaiian Islands from 18:56:02 ...

    Sunday

     — National Aeronautics and Space Administration (NASA),
    Kennedy Space Center Visitor Complex FL, USA

    Meet Astronaut Terry Wilcutt

    Wilcutt piloted Space Shuttle missions STS-68 and STS-79, and commanded STS-89 and STS-106. With over 1,007 hours in space on ...
    $158

    • Monday

     — China National Space Administration (CNSA),
    Statio Tianchuan, 43° N 51.9° W, Moon Surface

    Chang’E-5 Begins Next Year on Moon

    China National Space Administration (CNSA) Chang'E-5 lander at Statio Tianchuan "ship sailing in the Milky Way", Mons Rümker, Oceanus Procellarum, ...
    — American Institute of Aeronautics and Astronautics (AIAA),
    Sydney, Australia

    AIAA 2025 Region VII Student Conference

    Conference intended for AIAA Region VII Students from around the world except Canada and Mexico, which have been incorporated into ...
    — Institute of Electrical and Electronic Engineers (IEEE), Japan Aerospace Exploration Agency (JAXA), Japan Society for Aeronautical and Space Sciences,
    Sendai, Japan

    2025 International Conference on Space Robotics

    The International Conference on Space Robotics (iSpaRo) is a young conference aiming to provide a framework for scientists and industry ...

    Tuesday

     — Thales Alenia Space,
    Torino, Italy

    Lunar Economy Summit

    High-level industry forum exploring the potential opportunities of an advanced, long-term Lunar ecosystem. Join leading experts as they uncover the critical ...
    — American Institute of Aeronautics and Astronautics (AIAA),
    Online

    AIAA Day of Giving

    AIAA Day of Giving to help raise US$100,000 for programs that inspire and prepare the next generation of aerospace leaders. ...

    Wednesday

     — National Aeronautics and Space Administration (NASA),
    Online

    Planetary Sample Science Seminar

    11:00-12:00 MST; Presentation by William Bottke of Southwest Research Institute - Boulder: New Views on Terrestrial Planet Formation and Early ...
    — Japan Aerospace Exploration Agency (JAXA),
    Asteroid 98943 Torifune Trajectory

    Hayabusa 2 Begins Next Year in Space

    Japan Aerospace Exploration Agency (JAXA) Hayabusa surpasses 11 full years in space today; launched Dec 3, 2014, returned samples to ...
    — Moon Village Association (MVA),
    Torino, Italy

    9th Global Moon Village Workshop and Symposium

    Moon Village Association (MVA) is a non-governmental organization that promotes international collaboration for the development of lunar exploration and utilization. The ...
    €240 – €390
    — Hub Exhibitions Ltd,
    Glasgow, Scotland

    Space-Comm Expo Scotland

    2,300+ expected to attend for 100+ speakers
    Free – £142
    — United Kingdom Space Agency (UKSA), UK Space Trade Associations, Space Scotland, Scottish Enterprise,
    Glasgow, Scotland

    Space-Comm Expo 2025: Accelerating the Commercial Future of Space

    2,300+ expected to attend for 100+ speakers. Show features: investors forum, space law symposium. Focus on industry-government meetings. At Scottish ...
    Free – £142

    Sunday

     — Japan Aerospace Exploration Agency (JAXA),
    Tanegashima Space Center, Japan

    Launch H3-22 / Michibiki 5 (QZS-5)

    Navigation system satellite intended to assist in urban canyons and mountainous areas because of inclined, elliptical geosynchronous orbit. "22" designation ...

    Monday

     — Arizona State University (ASU),
    Tempe AZ, USA

    33rd Texas Symposium on Relativistic Astrophysics

    22 plenary speakers are confirmed, and 200+ contributed abstracts are accepted. At Arizona State University. The symposium will cover all ...

    Tuesday

    Wednesday

     — European Space Agency (ESA),
    Low Earth Orbit (LEO)

    XMM-Newton Begins Next Year in Space

    European Space Agency (ESA) craft surpasses 26 full years / begins 27th year in space today, launched 1999, in very ...
    — Italian Space Agency (ASI), Fiera Roma,
    Fiera di Roma, Italy

    New Space Economy NSE 2025 7th Edition

    SHAPING THE FUTURE OF SPACE: "The future is not what it used to be" (Mark Strand) NSE, the benchmark event ...

    Thursday

     — American Astronautical Society (AAS), American Institute of Aeronautics and Astronautics (AIAA),
    College Station TX, USA

    Daniele Mortari Astronautics Symposium

    In cooperation with the American Astronautical Society (AAS) and the American Institute of Aeronautics and Astronautics (AIAA), and sponsored by: ...
    $40

    Saturday

     — Asteroid 3200 Phaethon,
    Worldwide

    Geminids Meteor Shower Peak

    Usually strongest meteor shower yearly, up to 150 hourly. Moon is 30% full.

    Sunday

     — China National Space Administration (CNSA),
    Guang Han Gong, 44.12°N 19.51°W, Moon Surface

    Chang’E-3 Lander Begins Next Year on Moon

    China National Space Administration (CNSA) spacecraft at Guang Han Gong "Moon Palace", Sinus Iridum / Mare Imbrium, 44.12°N 19.51°W, surpasses ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    WISE / NEOWISE Begins Next Year in Space

    NASA Wide-field Infrared Survey Explorer spacecraft (redubbed Near-Earth Object WISE – NEOWISE) surpasses another full year in space today; launched ...

    Monday

    Tuesday

    Friday

     — Roscosmos State Corporation,
    Baikonur Cosmodrome, Kazakhstan

    Launch Soyuz 2.1a / Progress MS-33 (94P)

    Resupply mission to the International Space Station from spaceport operated by Russia within Kazakhstan.
    — European Space Agency (ESA),
    Sun-Earth L2 Lagrange point

    Gaia Spacecraft Begins Next Year in Space

    ESA spacecraft surpasses another full year in space today; now in extended mission phase working to map more than 1 ...

    Saturday

     — Space Center Houston,
    Houston TX, USA

    Family Overnight

    Tent-camp by Falcon 9 rocket or Independence shuttle replica, and STEM activities.
    $80

    Sunday

     — Comet 8P/Tuttle,
    Worldwide

    Ursids Meteor Shower Peak

    From Comet Tuttle (8P), with up to 10 per hour. Moon only 3% full helps viewing.

    Thursday

     — National Aeronautics and Space Administration (NASA), European Space Agency (ESA), Canadian Space Agency (CSA-ASC),
    Sun-Earth L2 Lagrange point

    James Webb Space Telescope Begins Next Year in Space

    NASA (STSci) / ESA / CSA infrared astronomy telescope surpasses next full year in space since launching on this day ...
    — National Aeronautics and Space Administration (NASA),
    Mars Orbit

    Mars Express Begins Next Year in Mars Orbit

    ESA spacecraft surpasses next full year in Mars orbit today; will continue to study Mars atmosphere & climate, planet structure, ...

    • Thursday

     — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET 2026 – Launch Long March 10A / First Test Flight

    Launch Long March 10A / First Test Flight: First flight of China Long March 10A rocket, precursor to Long March 10 ...
    — Rocket Lab,
    Launch Complex 1, Mahia Peninsula, New Zealand

    NET 2026 — Launch Electron / Venus probe 

    NET 2026 — Launch Electron / Venus probe: Independent mission to Venus developed by Rocket Lab and MIT to send tiny ...
    — Japan Aerospace Exploration Agency (JAXA),
    Tanegashima Space Center, Japan

    NET 2026 — Launch Martian Moons eXploration (MMX)

    NET 2026 — Launch Martian Moons eXploration (MMX): Japan planning to launch its first Mars mission consisting of sample return ...
    — United Launch Alliance (ULA),
    SLC-41, Cape Canaveral SFS FL, USA

    NET 2026 — Launch Atlas V / Starliner

    NET 2026 — Launch Atlas V / Starliner: Next launch of Starliner crew vehicle set to occur "early 2026", unknown ...

    Friday

     — Asteroid 2003 EH,
    Worldwide

    Quadrantids Meteor Shower Peak

    The Quadrantid shower is known for its brief, intense peak, lasting only a few hours. Appearing to radiate from Constellation ...

    Saturday

    Sunday

     — American Astronomical Society (AAS),
    Phoenix Convention Center Phoenix, AZ, United States

    247th Meeting of the AAS

    The 247th AAS meeting (joint with the High Energy Astrophysics and Historical Astronomy Divisions) will be held 4-8 January in ...

    Monday

     — University of Hong Kong Laboratory for Space Research (HKU-LSR), National Astronomical Observatories of the Chinese Academy of Sciences (NAOC-CAS), Chilean Astronomical Society,
    Hong Kong, China

    7th China-Chile Bilateral Astronomy Conference (CCBC2026)

    The 7th China-Chile Bilateral Astronomy Conference for 2026 will be organized by the Laboratory for Space Research, FoS, the University ...

    Tuesday

     — Lunar Exploration Analysis Group (LEAG),
    Laurel MD, USA

    Annual Meeting of the Lunar Exploration Analysis Group (LEAG)

    At Johns Hopkins University Applied Physics Laboratory or online, registration required, no fee. In-person attendees who self-identify as early career ...
    Free

    Monday

     — American Institute of Aeronautics and Astronautics (AIAA),
    Hyatt Regency Orlando Orlando, FL, United States

    AIAA SciTech Forum

    AIAA SciTech Forum—the premier aerospace R&D event of the year exploring the science, technologies, and capabilities that are transforming aerospace.

    Friday

     — International Astronautical Federation (IAF),
    Online

    IAF Awards 2026 Call for Nominations

    International Astronautical Federation recognizes achievements in the space community via many awards, such as World Space, International Cooperation, Hall of ...

    Saturday

     — Nichelle Nichols Foundation,
    Huntsville AL, USA

    Nichelle Nichols Space Camp

    Offering space, aviation and robotics program for girls ages 14-18, inspiring young women to aim for the stars.
    — Society of Photo-Optical Instrumentation Engineers (SPIE),
    San Francisco CA, USA

    SPIE Photonics West Conference

    SPIE Photonics West and subconference on Optical Power Delivery, key to development of Space Solar Power.

    Monday

    Tuesday

    Friday

     — University of Hawai`i at Hilo, University of California Observatories,
    Online

    Applications Due for Akamai Internship

    10-week summer program June 1 - August 7, 2026, for STEM undergraduates to gain work experience at observatory, company or ...

    Saturday

    Sunday

    Tuesday

     — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Apollo 1, 59th Observation

    Increasing space awareness and education, remembrances and events honor three Apollo 1 crew members lost in 1967 during a launch ...

    Wednesday

     — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Challenger STS-51L, 40th Observation

    Educational and ceremonial events held worldwide to advance space technology / education and honor 7 crew members killed in Shuttle ...

    Friday

     — Centre National D’études Spatiales (CNES),
    Online

    Act in Space 2026

    International innovation contest -- hackathon -- joined in 100+ cities in 5 continents, aimed at imagining the products and solutions ...

    Saturday

     — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Explorer 1, 68th Observation

    American Artemis Return to the Moon For Good is underway, Mars attention and planning advancing, Outer Solar System search for ...

    • Sunday

     — National Aeronautics and Space Administration (NASA),
    SLC-39B, Kennedy Space Center FL, USA

    NET Feb 5 — Launch SLS / Orion / Artemis 2

    Planned 1st fully-crewed Orion Moon flight to last 10-14 days with 3 USA and 1 Canada Astronaut: Commander Reid Wiseman, ...
    — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Columbia STS-107, 23rd Observation

    Annual international conferences and events take place to further space exploration efforts in remembrance of Columbia 7 loss: Commander Richard ...

    Monday

     — Office for Space Technology & Industry Singapore (OSTIn),
    Singapore

    Space Summit 2026

    Conference and exhibition dedicated to advancing global dialogue and collaboration. In conjunction with Singapore Airshow 2026. At Sands Expo & ...
    — Office for Space Technology & Industry Singapore (OSTIn), Singapore Economic Development Board (EDB Singapore),
    Marina Bay Sands / Sands Expo and Convention Centre , Singapore

    Singapore Space Summit 2026

    Space Summit 2026 is a space-focused conference with a boutique exhibition, highlighting trends, challenges and opportunities in the global space ...
    — International Association of Geomorphologists, ANZGG, University of Canterbury,
    Christchurch, New Zealand

    11th IAG International Conference on Geomorphology

    Includes track on planetary geomorphology for all Solar System bodies and exoplanets
    — Gemini Observatory, National Optical-Infrared Astronomy Research Laboratory (NOIRLab), Maunakea Observatories,
    Statewide Hawai’i, USA

    Journey Through the Universe

    Annual event in its 22nd year, inviting STEAM professionals and Maunakea Observatories staff to participate in 200+ Hawai'i classroom visits, ...

    Tuesday

     — Civial Aviation Authority of Singapore (CAAS), Changi Airport Group, Singapore Exhibition and Convention Bureau,
    Changi Exhibition Centre 9 Aviation Park Rd, Singapore, Singapore

    2026 Singapore Airshow (10th Edition)

    Singapore Airshow is one of the world’s most influential international aerospace and defence exhibitions, providing a platform for stakeholders to ...

    Thursday

     — Kanagawa Prefectural Government,
    Yokohama, Japan

    Kanagawa Space Summit 2026

    Kanagawa Space Summit, at Minato Mirai - Yokohama. The first space summit organized by a prefectural government in Japan.

    Monday

     — United Arab Emirates Space Agency (UAESA),
    Mars Orbit

    Hope Orbiter Begins Next Year in Mars Orbit

    UAE Hope Orbiter, studying Mars atmosphere and climate, reaches 5 full years / enters 6th year in Mars orbit today; ...

    Sunday

    Tuesday

     — Lunar Calendar,
    China (Zhongguo) / Worldwide

    Lunar New Year

    Lunar New Year 2026 Spring Festival marks the Year of the Horse.

    Wednesday

     — National Aeronautics and Space Administration (NASA),
    Mars Surface

    Mars Perseverance Rover Begins Next Year on Mars

    Mars 2020 Perseverance Rover reaches 5 full years / enters 6th year on Mars surface having landed in Jezero Crater ...
    — International Academy of Astronautics (IAA), University of Texas at Austin (UT), Strauss Center for International Security and Law,
    Austin TX, USA

    12th Annual Space Traffic Conference: Operational Assurance for All

    Sponsored by the Space Security, Safety, and Sustainability (SSSS) Program at The University of Texas at Austin’s (UT) Strauss Center for International ...

    Sunday

    Tuesday

    Wednesday

     — American Institute of Aeronautics and Astronautics (AIAA),
    League City TX, USA

    ASCENDxTexas 2026

    Taking place at South Shore Harbour Resort & Conference Center in League City, Texas; ASCENDxTexas is where leaders from government, industry, ...

    • Monday

    Monday

     — Lunar and Planetary Institute (LPI), Universities Space Research Association (USRA),
    The Woodlands TX, USA

    57th Lunar and Planetary Science Conference

    Expecting 2,000+ for the latest science, research, discoveries; at Waterway Marriott and online
    $400 – $700

    • Wednesday

     — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    45th Observation of STS-1 Columbia Flight

    Commemorations occur today in honor of 1st ever NASA Space Shuttle Columbia carrying John Young and pilot Robert Crippen around Earth on 54.5-hour mission in ...

    Friday

     — Hawai'i, USA,
    Statewide Hawai’i, USA

    Pōwehi Day

    Recognized proclamation to celebrate the first-ever imaged black hole M87* by Event Horizon Telescope collaboration involving Mauna Kea Observatories, given the Hawaiian ...

    Sunday

     — Yuri's Night,
    Worldwide

    Yuri’s Night Celebrations

    Launching parties around the world every year on or around April 12th, in commemoration of Yuri Gagarin becoming the first ...

    Monday

     — Space Foundation,
    Colorado Springs CO, USA

    41st Space Foundation Space Symposium

    Theme: Building Capacity Through Innovation and Collaboration. Expecting 10,000+ registrants, 247 exhibitors, 24 space agencies, 1500+ organizations. At The Broadmoor ...
    Free
    — American Society of Civil Engineers (ASCE), Texas A&M University,
    College Station TX, USA

    ASCE Earth & Space 2026 Conference

    20th International Conference on Engineering, Science, Construction and Operations in Challenging Environments: ASCE Earth & Space 2026

    Saturday

    Tuesday

     — Comet C/1861 G1 (Thatcher),
    Worldwide

    Lyrids Meteor Shower Peak

    Best seen from Northern Hemisphere, with a lower hourly rate in the Southern Hemisphere, Lyrids seem to stream from the ...

    Friday

     — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Hubble Space Telescope Begins Next Year in Space

    NASA spacecraft with 2.4-meter diameter main telescope begins 37th year in space today, launched Apr 24, 1990; could continue operations ...
    — China National Space Administration (CNSA),
    China (Zhongguo)

    National Day of Space Flight

    Commemorating the launch of China’s first satellite, Dongfanghong-1 on April 24, 1970.

    • Friday

     — International Space Day,
    Worldwide

    International Space Day

    First Friday in May, events and presentations to promote STEM education and inspire people to continue the work of Space ...

    Monday

     — International Astronomical Union (IAU),
    Hong Kong, China

    Asia-Pacific Regional IAU Meeting (APRIM 2026)

    The Asia Pacific Regional International Astronomical Union (IAU) Meeting is a highly anticipated gathering that convenes astronomers, researchers, and enthusiasts ...

    Thursday

     — China National Space Administration (CNSA),
    Utopia Planitia, 25.1°N 109.9°E, Mars Surface

    First Landing on Mars by China, 5th Observation

    Tianwen-1 Lander and Zhurong Rover celebrated today for China's first successful landing on Mars; craft landed on this day in ...

    Monday

    Tuesday

     — American Institute of Aeronautics and Astronautics (AIAA), Commercial Space Federation (CSF), Space Force Association, Space Generation Advisory Council (SGAC), Lockheed Martin, ISS National Laboratory,
    Washington DC, USA

    2026 ASCEND Conference

    Accelerating Space Commerce, Exploration, and New Discovery

    Thursday

    Monday

     — USA Congress,
    Nationwide USA

    John F. Kennedy 1st Moon Speech

    NASA Artemis program to land 1st Woman and Person of Color on Moon is well underway as today is recognized ...

    Tuesday

     — von Karman Institute for Fluid Dynamics,
    Brussels, Belgium

    32nd AIAA / CEAS Aeroacoustics Conference 2026

    Organized by the von Karman Institute for Fluid Dynamics, the 32nd AIAA/CEAS Aeroacoustics Conference (Aeroacoustics 2026) is the premier international ...
    €475

    • Monday

     — China National Space Administration (CNSA),
    Apollo Basin, 153.99° W 41.63° S, Moon Surface

    Chang’E-6, Second Observation of Mission

    Chang'E-6 mission is commemorated, having landed on this day in 2024, and returning the first-ever samples from the lunar farside ...

    Tuesday

     — Advanced Business Events,
    Pretoria, South Africa

    International Space Summit Africa 2026

    Expecting 300 exhibitors from 25 countries. At CSIR International Convention Centre.
    — South African Radio Astronomy Observatory (SARAO), ZA Space, GMN Fairs, Hauweng, Advanced Business Events,
    Pretoria, South Africa

    International Space Summit Africa

    Expecting 300 exhibitors, 500 companies, 25 countries, 3,000 B2B (business to business) meetings

    Thursday

    Friday

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