Airwave from the Artemis2 launch reached @Astro_Jeremy's hometown at 8:11 pm EST. @WesternU Elginfield Observatory infrasound station detected #ArtemisII just after launch ascent as it was heading over the Atlantic. Green box shows airwave arrival lasting several minutes.

For Canadian scholars, the reality is bleak . Ottawa is dangling money for American researchers, but what about our own? #academicsky #neuroskyence #psychscisky

Starlink-1066 re-entry on Sep 23 at 0605 UT imaged by satellite tracking cameras of a joint #Westernu and #DRDC project. Breakup is shown over heights 65 – 60 km. Any surviving debris likely landed in parts of NE Sask, N Man or Ontario. Analysis by @meteordoc. #starlink

A bolide, or large meteor, broke up over South Carolina and Georgia earlier today, creating a fireball that was bright enough to be captured by GOES-19.

Join #WesternU as our next Canada Excellence Research Chair ( #CERC). The awards provide for international researchers to lead prestigious research programs at Western and contribute to Canada's excellence in research & innovation. Application review begins June 4, 2025. www.uwo.ca/research/cer...

For those who may have been looking for a change of scene to Canada: uwo.ca/research/cer...

Nature Scientific Reports has finally decided to retract the faulty paper that claimed a comet destroyed Sodom. The people behind the Younger Dryas Impact Hypothesis are hopping mad. cosmictusk.com/nature-scien...

Wow! Big meteor in Sydney. There are a few DFN cameras there, so we should soon know whether to expect any meteorites from that event. Was it over land?

Share with US students who had their offers of admission withdrawn for PhD programs: Apply to Canada. Check out Canadian professors, and contact us. Our system works differently here, and we are all still, technically, able to accept students for Fall 2025.

Today on the #arXiv : Chow & @pgbrown2.bsky.social 2025, "Decameter-sized Earth impactors -- I: Orbital properties" - arxiv.org/abs/2501.03308 Surveying the largest Earth impacts of the past 30 years.

#PlanetaryScience in real time! The predicted fireball over Russia

Both techniques also agree about the composition of the object -- this little half meter asteroid was likely a regular run-of-the-mill ordinary chondrite, the most common kind of meteorite to land on the Earth today.

The #TeamAsteroid version of Farm-to-Table. 🔭🧪 #PlanetaryScience

Graham Hancock and the Comet Research Group are full of baloney. Just apply Carl Sagan’s Baloney Detection Kit to the Younger Dryas impact hypothesis. theconversation.com/as-the-tauri...

My department is hiring for a teaching scholar faculty position: please share! www.uwo.ca/facultyrelat... 🔭🧪