@ARISS_Intl

We let students have the excitement of talking with crew members on the ISS, inspiring them to interests in STEM fields. Event info at https://nitter.cf/t.co/lK6Sqbx1CN.

Worldwide
Joined October 2009
ARISS is plotting a course to continue our mission in the government and commercial space realm beyond the targeted decommissioning of the ISS in the 2030 timeframe. Read more about our activities in these infographics, and in a blog post at ariss.org.
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Contact upcoming with North Carolina! Patients at Atrium Health Levine Children’s Hospital in Charlotte will talk live via ham radio with Jack Hathaway on the ISS. Scheduled Wed. Sep. 23 at 16:51 UTC | 12:51 PM ET via ON4ISS telebridge in Belgium. Listen on 145.800 MHz FM.
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In T-1 hour from the time of this post, the ARISS cross-band voice repeater and packet radio are scheduled to go off in support of the Progress 96 docking. Reminder: HamTV is currently off in support of payload ops, and is scheduled to return Sept. 23.
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ARISS - Amateur Radio on the ISS retweeted
A sneak peek at some of the absolutely brilliant work the Technical department have been doing in support of our @ARISS_Intl contact. We can't wait to show you all the cool stuff they've been up to!
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If you're attending #ASTC2026 in Phoenix, stop by Booth 708 to meet the ARISS team! Learn how students can talk directly with astronauts aboard the International Space Station and discover additional ARISS STEM education opportunities. We hope to see you there!
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ARISS - Amateur Radio on the ISS retweeted
Wick High School in Caithness is only weeks away from hosting an @ARISS_Intl contact with the @Space_Station. The contact is the culmination of a year-long programme of #STEM activities involving schools across East Caithness. Former Chair of the RSGB Youth Committee Chris Aitken, MM0WIC is the Computing Science Teacher at the school and also leads Wick High School Radio Club @GM0WHS Read more in this local news article: johnogroat-journal.co.uk/new… Photo is of a mission patch that has been specially designed by one of the students and will be given to every pupil involved in the event. What a great design! #amateurradio #hamr #space #RadioCommunication #YoungstersOnTheAir @skipperAitken
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It's time to finish those ARISS proposals! U.S. applications for a ham radio contact with the International Space Station crew are due Sept. 30, just two weeks away. Educators in Europe, Africa, and the Middle East can apply by Oct. 26 for contacts in the second half of 2027.
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For all other regions, and more information, visit ARISS.org and click "Educational Contacts"
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ARISS - Amateur Radio on the ISS retweeted
It's getting very real here in the lead up to our @ARISS_Intl contact. Today is very exciting as our mission patches were delivered!It's been such a great activity idea suggested by ARISS & our pupils have excelled with their final product.We can't wait to see them on t-shirts
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If you had the chance to talk directly with an astronaut aboard the International Space Station, what would you ask? Would you want to know about life in microgravity, scientific research, technology on the ISS, views of Earth from orbit, or something else entirely? Drop your question in the comments!
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Reminder - HamTV goes offline in 1 hour at 10:35 UTC / 6:35 a.m. ET to support non-ARISS payload activities aboard the ISS. Service is currently planned to return on Sept. 23 at 17:10 UTC / 1:10 p.m. ET. Times are approximate and subject to change.
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ARISS USA congratulates three new STEM organizations selected to host amateur radio contacts with astronauts aboard the International Space Station between now and June 2027: • Archdiocese of Atlanta Catholic Schools, Atlanta, Georgia • University of Texas at Austin Women in STEM, Austin, Texas • Dresden Elementary School, Dresden, Ohio These contacts will give students the opportunity to speak directly with ISS crew members and learn more about space, science, technology, engineering, and amateur radio.
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🌎 Could your students be next to talk with astronauts aboard the ISS? Learn how to host an ARISS contact in your part of the world: ariss.org/apply-to-host-an-a…. U.S. proposals submitted by September 30 will be eligible for consideration for contacts during the 2026-2027 school year.
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ARISS Proposal Deadlines Upcoming! - US groups, submit by Sept. 30 for contacts in the first half of 2027. - Europe, Africa, Middle East, submit by Oct. 23 for contacts in the second half of 2027.
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Find your regional application information at ariss.org/apply-to-host-an-a… Note: Maps are illustrative; not all countries shown are eligible for participation.
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Heads up, ARISS operators and schools! The planned outage for the cross-band repeater and APRS packet radios has moved to Sept. 18-19 to support Progress docking activities. The HamTV outage has also been extended based on the payload work schedule. Details, dates, and times are in the graphic. 🚀
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Want to talk to the crew on the ISS using amateur radio? Patience is key. When crew members have free time and choose to get on the air, they will use the ARISS cross-band voice repeater for casual contacts. These sessions are unscheduled, so the best approach is to listen and be ready. After all, ham radio is just one of many ways the crew spends their off-duty time aboard the Station.
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For our dedicated HamTV trackers, be aware that the unit will be offline next Mon. AM - Thu. AM in support of other payload activities on the ISS.
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Tuesday science tip: The ARISS voice repeater always transmits on 437.800 MHz, but you may not receive it exactly there. As the ISS moves across the sky, the signal appears to shift in frequency. That's Doppler shift, and adjusting for it can help you hear more of each pass.
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