It is still painful to see the ruins of the big dish.

QT Prof. Abel Méndez @profabelmendez.bsky.social‬
2026 January 10

Five years after the collapse of the Arecibo Telescope, a radio telescope is back online. The signal is back. #AreciboWow https://phl.upr.edu/wow/outreach #RadioAstronomy #Outreach

https://bsky.app/profile/profabelmendez.bsky.social/post/3mc45ogfoml2h

PHL @ UPR Arecibo - outreach

Last Update: January 10, 2026 Software development is ongoing, with a new mode that reproduces the Big Ear telescope output. All telescope components are now available online.

Cool science. Not aliens.

QT Prof. Abel Méndez @profabelmendez
2025 August 14

New Study Narrows the Hunt for the Source of the Mysterious 1977 “Wow! Signal” https://phl.upr.edu/wow #AreciboWow #Astrophysics #SETI #WowSignal

https://bsky.app/profile/profabelmendez.bsky.social/post/3lwflnkps442r

PHL @ UPR Arecibo - Arecibo Wow!

Arecibo Wow! is a search for transient radio signals inspired by the Wow! Signal

Cool science. Not aliens.

QT Prof. Abel Méndez @profabelmendez.bsky.social‬
2025 July 15

One month from today marks the 48th anniversary of the Wow! Signal, a moment that continues to inspire scientific curiosity. We’re preparing to share new results that offer fresh insights into this enduring mystery. #WowSignal #SETI #Astrophysics #AreciboWow https://phl.upr.edu/wow/data
https://bsky.app/profile/profabelmendez.bsky.social/post/3ltzgfr2m3o2v

PHL @ UPR Arecibo - data

Properties of the Wow Signal

On August 15, we celebrate 48 years since the Wow! Signal. #AreciboWow
El PHL está buscando estudiantes subgraduados para participar en el proyecto Arecibo Wow! durante este verano y el próximo semestre. https://phl.upr.edu/wow/projects #AreciboWow #PHL @CienciaPR @adamonzon @upr_oficial @upra_oficial
Wow@Home: Bringing a radio telescope to your home is now as easy and fun as setting up satellite TV — and it’s even more affordable! #RadioAstronomy #Astrophysics #RFI #Technosignatures #SETI #AreciboWow #WowSignal https://phl.upr.edu/wow/outreach
PHL @ UPR Arecibo - outreach

Last Update: January 10, 2026 Software development is ongoing, with a new mode that reproduces the Big Ear telescope output. All telescope components are now available online.

It's remarkable that Ohio's Big Ear radio telescope, which famously detected the Wow! Signal, was operated for over 20 years entirely by volunteers driven by curiosity and a passion for the search for extraterrestrial life in the universe. 😌 #AreciboWow
FORTRAN IV: Because coding without lowercase letters builds character. 😄 #Retrocomputing #AreciboWow
Our #AreciboWow! project is conducting the most in-depth analysis of the Wow! Signal using results from the world’s longest-running SETI initiative. Excited to welcome @hsocasnavarro & @david_kipping to the team! 📡🔭✨ #Astronomy #SETI
This is a brief account of the day the Wow! Signal was detected, including some lesser-known details, with more to come. #RadioAstronomy #Astrobiology #SETI #WowSignal #AreciboWow https://phl.upr.edu/wow/story
PHL @ UPR Arecibo - story

The night before, the Ohio State University Radio Observatory—better known as Big Ear—had been methodically scanning the sky, observing at a declination of -26 degrees. The observation continued into the morning of Monday, August 15, 1977, finally concluding at 10:40 AM. With that session complete,