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Yeeeew! @astrokirsten.bsky.social is a finalist for a Eureka Award for Promoting Understanding of Science! Well-deserved! australian.museum/get-involved...

One such example. People were thinking about the FCC's approvals of spectrum and how that has broader environmental impacts that the FCC should consider .... 6 years ago! scholarship.law.vanderbilt.edu/jetlaw/vol22...

Reviewing just the headlines, not the details, of that document it looks like they cover a lot of areas. Will dig into reading it later, but as mentioned above, they have at least done some digging on a lot of background info to support their petition. Will def. be using those references....

last RePost re: Environmental Impacts of satellite constellations and orbital data centres .... Hyperlink leads to this formal petition being lodged against the FCC. Have just skimmed it -- it's got 113 footnootes/citations --> good source for further reading earthjustice.org/wp-content/u...

Interesting times dot com

Congratulations to the brilliant science journalists and science journalism shortlisted for this year's Eureka Prize for Science Journalism at @australianmuseum.bsky.social: @smritimallapaty.bsky.social @peterdekruijff.bsky.social @liammannix.bsky.social

What I like about this is that when they didn't fit the Moon's effect, the lunar orbital cycles appear in the pulsar data too! Always good to see a little bit of edu. science like this being done with the smaller telescopes and less-complicated signal processing set-up. arxiv.org/abs/2607.21812

This is a fun study (and good educational work) using a 12.8m radio telescope. The authors looked at Galactic H1 and a pulsar on a daily basis, and tried to derive an accurate Earth-Sun distance. They got it down to about ±0.000034 au (roughly ±5000 km of the ~150 million km)

yes, the Chinese satellites, and they use narrowband transmissions too. Also, I'm not sure how long their mission profile lasts for, but regardless at this point 3-4 satellites using narrowband in designated spectrum is fine. The issue is when things scale up (and quickly)

A new pre-print has explored, through simulations, how radio frequency interference will scale over several years at the sight of one of the planned radio telescopes. The simulations show that with shielding, some mitigation helps from intended emissions. But the risk is unintended emissions. 🔭

The Lunar farside, which is shielded from Earth's electromagnetic radiation, is a pristine and unmatched environment where future sensitive #RadioAstronomy can take place. But as commercial and political access to the Moon grows, so too does the risk of preserving this important radio heritage 🔭

What an extraordinary find! 100 million years ago, in the oceanic waters that later became Queensland — an ichthyosaur ate a pterosaur before a kronosaurus came along and ate them both. The dino age had zero chill about it — basically kill or be killed.

Once we get the light from the supernova it means it would have happened about 7500 years prior, as that is its rough distance from us.

Look if it happens in our lifetime, I promise you I will turn every camera I own towards it and record and live stream it to the world!

Exactly! It wants to go boom! Everybody wants it to go boom! We should just encourage it to go boom!

Eta Carina also seems happy to go boom any day now, so this is a mutual agreement. Everyone wins. LFG, coward. Blow up. 📸 NASA, ESA, Hubble; Processing: @geckzilla.bsky.social

These are all excellent reasons for wanting Betelgeuse to go boom, but I've now become more appreciative of Orion the constellation, and how this would ruin it. BUT -- I still want science and the cosmic fireworks. So ... a solution: LET'S SACRIFICE ETA CARINA. ⭐💥 NO ONE CARES ABOUT ETA CARINA.

ha, same! I just deal with them after they have gone through this messy and, frankly, overly dramatic stage of their lives. Come back to me when their radius is < 25km, they're spinning as fast as your blender and their B-fields are 10^8+ Gauss.

Oops. Did it again. 😉 SPHERE at the VLT and Betelgeuse are a great combination for nice results ! Thanks to all the team who contributed to this result, and to the people @eso.org who collected the data.

Oh, i'm not too sure of how this scenario plays out. This new paper is reporting the distance ~8.8 AU. I think Big B's outer envolope might extend out to close to this, so it might be swallowed by it? Also not sure if companion has had enough time to make degenerate matter for the WD?