EPISODE · Apr 23, 2026 · 12 MIN
Listening for the cosmic ‘dark ages,’ from the lunar far side
from Science Friday · host Anže Slosar, Ira flatow, Charles Bergquist
What did the universe look like before any stars turned on? Astronomers call that time the “dark ages,” and while they think it may be possible to see remnants of it in very low frequency radio signals, hearing those signals from Earth can be challenging. One possibility is to put a radio telescope on the far side of the moon, where it would have periods of observation shielded from interference both from Earth and from the sun—and potentially be able to receive that dark ages signal. The LuSEE-Night mission will explore that approach. A small demonstration radio telescope is slated for launch in late 2026 to serve as a proof of concept for low frequency radio astronomy on the lunar far side. Astronomer Anže Slosar, lead scientist for LuSEE-Night, joins Host Ira Flatow to describe the telescope project and what astronomers hope to achieve by sending it to the moon. Other episodes you may enjoy: CERN finds a new particle + News alerts for the cosmos 3D Images Of Galaxies Will Rock You (Ft. Queen) Guests: Dr. Anže Slosar is science lead for the LuSEE-Night project. He’s based at Brookhaven National Lab. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374 Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
What this episode covers
The LuSEE-Night mission would place a small radio telescope on the far side of the moon to listen for signals of the cosmic "dark ages."
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Listening for the cosmic ‘dark ages,’ from the lunar far side
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