For Asteroid Day, read about how even with the amazing Rubin Telescope asteroid discoveries, we still need dedicated near Earth asteroid searches, including by the Catalina Sky Survey @catalinaskysurvey.bsky.social catalina.lpl.arizona.edu/news/spectac...

The 2025 Catalina Sky Survey Monsoon Workshop will be held in Tucson, August 1-5, as a splinter session of the ADASSx Summer Software Workshop, immediately following the Rubin Community Workshop. Registration (free) and abstract submission are now open. #PlanetSci #AstroMethods #PlanetaryDefense

We are recruiting a new C programmer. If you love astronomy and want to work on the front lines of planetary defense creating custom software solutions for extracting new NEOs from image data and much more, please take a look! 🔭 arizona.csod.com/ui/internal-...

A well-written piece on Planetary Defense featuring a rock found at CSS in The American Scholar. Enjoy! 🔭

2025 CE13 is a newly discovered potentially hazardous asteroid. It is between 141-316m in diameter and passes within 4.4LD of Earth's orbit. It was discovered on Feb 2nd, 2025 by CSS observer H. Groeller. 2025 CE13 poses no impact threat to Earth. 🔭

Congratulations to CSS observer Hannes Groeller. Hannes recently discovered comet C/2025 D1 (Groeller) from the Bok telescope, which we operate under a partnership with Spacewatch. C/2025 D1 has the largest perihelion distance of any comet found to date. Interactive orbit in comments. 🔭

2025 CW is a newly discovered potentially hazardous asteroid. It is between 200-450m in diameter and passes within 4.32LD of Earth's orbit. It was discovered on Feb 3rd, 2025 by CSS observer T. Beuden. 2025 CW poses no impact threat to Earth. 🔭

Happy to announce we have joined BlueSky and look forward to sharing information about the amazing discoveries we make at CSS. Stick around for some neat stuff! #astronomy #asteroids #planetarydefense

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