Gravitational Wave Breakthroughs, Exoplanet Water Content Surprises, and Gilmour Space's Launch Journey

• New Method for Detecting Gravitational Waves: Physicists are proposing a groundbreaking approach to detect mid-band gravitational waves, a frequency range currently unreachable by existing instruments. Utilizing optical resonator technology, this novel method could expand our understanding of systems like binary white dwarfs and massive black hole mergers, paving the way for a potential global network of detectors.
• Reevaluating Exoplanet Water Content: Recent research challenges the assumption that sub-Neptunes, like K2 18B, are covered by vast oceans. A study from ETH Zurich suggests that water on these planets may be limited due to chemical processes that destroy H2O molecules during their formation, significantly altering our perspective on habitability in the universe.
• Close Encounter with Asteroid 2025 TF: A small asteroid, designated 2025 TF, made a remarkably close approach to Earth on September 30th, flying within 250 miles of our planet. Although detected only hours after its closest pass, this event underscores the challenges of tracking smaller objects in our solar neighborhood.
• Australia's Growing Space Industry: Gilmour Space Technologies recently attempted its first orbital launch with the Ares small launch vehicle. Despite a short flight of just 14 seconds, the company is optimistic about future launches as they navigate regulatory hurdles, aiming to establish a reliable domestic launch capability for Australia.
• For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, TikTok, and our new Instagram account! Don’t forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.
• Thank you for tuning in. This is Anna and Avery signing off. Until next time, keep looking up and exploring the wonders of our universe.

✍️ Episode References
Gravitational Wave Detection Proposal
[University of Birmingham](https://www.birmingham.ac.uk)
Exoplanet Water Research
[ETH Zurich](https://ethz.ch/en.html)
Asteroid 2025 TF Details
[NASA](https://www.nasa.gov)
Gilmour Space Technologies Update
[Gilmour Space](https://www.gilmourspace.com)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io/)

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