The European Lunar Symposium 2026 will take place June 22-26, 2026 in Nancy, France. More information is on the event's website.

NASA's Aerospace Safety Advisory Panel will report on its most recent meetings with NASA on June 22, 2026 at 2:00 pm ET.  The public may listen to ASAP's statements via telephone only.  Public comments, but not questions, are permitted. More information and the telephone number to call is in the Federal Register notice, which is …

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As of April 13, the House Appropriations Committee plans to mark up the FY2027 Defense bill on June 11, 2026 at 9:00 am ET.  The subcommittee markup is closed. Full committee mark up of the Defense bill is planned for June 24 at 11:00 am ET. THE SCHEDULE IS SUBJECT TO CHANGE. Check the committee's …

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The Space Renaissance International IV World Congress will take place on  Zoom and broadcast on YouTube from June 30-July 4, 2026. The theme is "Quality of Life, on Earth and Beyond." More information and the agenda are on the event's website.

July 3, 2026 is a Federal holiday in observance of Independence Day, which is Saturday, July 4, and government offices will be closed. Independence Day celebrates the adoption of the Declaration of Independence by the Second Continental Congress in 1776 that declared the independence of the 13 colonies from Great Britain, creating the United States of America …

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The 2026 Farnborough International Airshow (FIA) will take place in Farnborough, UK from July 20-24, 2026. More information is on the event's website.

Explore Mars's annual Humans to the Moon and Mars (H2M2) Summit will take place July 21-23, 2026. For the first time it will be held at Rice University in Houston, TX rather than in Washington, DC. More information is on the event's registration website.

The 2026 NASA Exploration Science Forum (NESF) will take place at NASA's Ames Research Center in Mountain View, CA from July 21-23, 2026. More information is on the event's website, which says:

The Maryland Space Business Roundtable (MSBR) will hold a luncheon on July 22, 2026 at Martin's Crosswinds in Greenbelt, MD from 11:30 am-1:00 pm ET. The speaker is Minh Nyugen, FAA Deputy Associate Administrator, Commercial Space Transportation. More information is on the event's website.  

The Committee on Space Research (COSPAR) will hold its 2026 Scientific Assembly in Florence, Italy from August 1-9, 2026. More information and the agenda are on the COSPAR website. An emailed announcement on September 22, 2025 provided a list of topics that will be addressed, as follows:    

The 2026 Taiwan Lunar Symposium will take place August 9-13, 2026 at Sun Moon Lake, Taiwan. More information is on the event's website.

The 4th Texas Area Planetary Science (TAPS) meeting will take place at the University of Texas at Austin in Austin, TX from August 20-21, 2026. More information is in the announcement in the March 8, 2026 Planetary Exploration Newsletter, Vol 20, No 10, which says: TEXAS AREA PLANETARY SCIENCE MEETING We are excited to announce …

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The 40th Small Satellite Conference will take place August 23-26, 2026 at the Salt Palace Convention Center in Salt Lake City, Utah. More information is on the event's website, which says: The Clouds Above the Clouds Celebrating 40 Years of Collaboration Over the past four decades, the small satellite community has transformed from a dedicated …

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The 3rd International Academy of Astronautics (IAA) Conference on AI for Space will take place in Jeju, Republic of Korea, from August 26-28, 2026. More information is on the event's website:

September 7, 2026 is a U.S. Federal holiday, Labor Day.  Government offices will be closed. According to the Department of Labor: “Observed the first Monday in September, Labor Day is an annual celebration of the social and economic achievements of American workers. The holiday is rooted in the late nineteenth century, when labor activists pushed for …

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The Air and Space Forces Association's (AFA's) 2026 Air, Space & Cyber Conference will take place at the Gaylord National Resort and Convention Center in National Harbor, MD from September 14-16, 2026. A virtual option is available. More information is on the event's website, which says (as of May 9, 2026):  

The 2026 Advanced Maui Optical and Surveillance (AMOS) Technologies Conference will take place September 15-18, 2026 on Maui, Hawaii. A virtual option is available. More information is on the event's website, which says: The AMOS (Advanced Maui Optical and Space Surveillance Technologies) Conference is the premier technical conference in the nation devoted to space situational …

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The 2026 International Observe the Moon Night will take place globally on September 19, 2026. More information is on NASA’s Observe the Moon website.

The 2026 Texas Space Summit will take place at the Henry B. Gonzalez Convention Center in San Antonio, TX from September 21-23. 2026. More information is on the event's website, which says:

SpaceCHI, "the world's first conference dedicated to advancing human-computer interaction in space exploration," will take place September 24-25, 2026 at NASA's Ames Conference Center Building 3, 500 Severyns Ave., Moffett Field, CA (near Mountain View). More information is on the event's website.