#PlanetaryDefense
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asteroiddave.bsky.social
Tracking hazardous asteroids while the city sleeps. 1m scope on Mount Lemmon AZ. #PlanetaryDefense #AsteroidWatch #Astronomy 🔭
January 18, 2025 at 5:24 AM
asteroiddave.bsky.social
Running two 1m+ class telescopes in tandem tracking newly discovered Near-Earth Asteroids. The city beds down for the night and we get busy watching the skies. #astronomy #asteroids #planetarydefense 🔭🧪
2, 1m+ telescopes running in tandem tracking Near-Earth Asteroids.
February 26, 2025 at 4:34 AM
catalinaskysurvey.bsky.social
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
February 13, 2025 at 10:56 PM
comet-toolbox.com
Hayabusa2# will fly by asteroid (98943) Torifune on the 5th of July. All details in a new paper by Masatoshi Hirabayashi. Exciting !
arxiv.org/pdf/2604.08832

#planetaryscience #planetarydefense #hayabusa2
April 14, 2026 at 4:50 PM
holidaychannel.bsky.social
From dinosaur extinction to planetary defense plans asteroids matter more than you think. #InternationalAsteroidDay #AsteroidDay
#PlanetaryDefense #SpaceAwareness
#AsteroidImpact #NASA #SpaceScience
#AsteroidAwareness #SpaceRocks
#myholidayworld #holiday365
June 30, 2025 at 11:53 AM
asteroiddave.bsky.social
Fun animation showing observatories over the last few nights tracking Near-Earth Asteroids, mostly new discoveries. You can see when the sky is clear in AZ, we are very busy.

#astronomy #planetarydefense #asteroids #neos 🔭
April 17, 2026 at 8:26 AM
robseaman.bsky.social
Here's the observability chart from Lowell for the next decade for 2024 YR4 with generous settings (V < 24.5). After the last few observations from this apparition and archival data, there will be no more until Dec 2028.

#PlanetSci #PlanetaryDefense #Asteroids #NEOs

asteroid.lowell.edu/astobs/
February 4, 2025 at 4:32 PM
nickattree.eurosky.social
Very interesting for #PlanetaryScience and #PlanetaryDefense !
March 7, 2026 at 12:33 PM
nasaupdates.bsky.social
Ground telescopes can miss small or dark asteroids, but NEO Surveyor won't! ☄️ Equipped with two 16-megapixel detector arrays, this mission will conduct a continuous 5-year survey to find the hardest-to-spot near-Earth objects. 🛸🛡️ #PlanetaryDefense #Astronomy #NEOSurveyor

4/4
May 7, 2026 at 3:51 PM
robseaman.bsky.social
Experimental Planetary Defense!

#PlanetaryDefense #Asteroids
February 13, 2025 at 12:42 AM
robseaman.bsky.social
Plot of asteroid size (H) versus distance (MOID) for PHAs & NEOs (definitions in comments). Planetary Defense requires finding NEOs that can make close approaches to Earth. NEOs have eccentric orbits and spend most of their time far from Sun & Earth.

#PlanetSci #PlanetaryDefense #Asteroids #NEOs
February 3, 2025 at 10:30 PM
nasaupdates.bsky.social
🌌 Dark asteroids and comets don't reflect much visible light, making them hard to spot. NASA's NEO Surveyor will use sensitive infrared detectors to track these elusive near-Earth objects as they glow from the heat of sunlight! 🛰️ #PlanetaryDefense #Space

1/3
The instrument enclosure for NASA's Near-Earth Object Surveyor is prepared for environmental testing inside the historic Chamber A in the Space Environment Simulation Laboratory at the agency's Johnson Space Center in Houston
July 1, 2026 at 9:38 PM
allplanets.bsky.social
My colleague Josselin Desmars from the Paris Observatory has identified additional occultation events for 2024 YR4 in February. A more detailed analysis—accounting for uncertainties and diffraction—is needed, but there’s hope we can refine the position of this Torino-3 asteroid. #PlanetaryDefense
February 2, 2025 at 3:00 AM
marijkelouise.bsky.social
Dankzij #PlanetaryDefense inspanningen bij NASA en over de hele wereld hebben we bijna 11.000 aardscheerders (NEAs) ontdekt die groter zijn dan 140 meter, en naar schatting zijn er nog 14.000 te vinden.
August 25, 2024 at 4:53 PM
comet-toolbox.com
This week I'll be participating in the first RAMSES Community Meeting. Only a little fewer than 3 years before our encounter with asteroid Apophis ! #PlanetaryDefense #PlanetaryScience
www.ramsesmission.space/workshop-2026
Workshop 2026 — RAMSES Mission
www.ramsesmission.space
June 15, 2026 at 12:13 PM
juaguispace.bsky.social
What a fantastic week we have had in Stellenbosch for #PDC2025! You can really sense how much #PlanetaryDefense has advanced in the last years and how many people is now involved in it!

Looking already forward for #PDC2027 in #Montreal!!!

@operations.esa.int
May 11, 2025 at 3:38 PM
marijkelouise.bsky.social
Dankzij #PlanetaryDefense inspanningen bij NASA en over de hele wereld hebben we 11.223 aardscheerders (NEAs) ontdekt die groter zijn dan 140 meter, en naar schatting zijn er nog 14.000 te vinden.

Maart 2025 👇
March 29, 2025 at 4:15 PM
richardkowalski.bsky.social
The Summer Milky Way above one of the obsevatories where the Catalina Sky Survey searches for Near Earth Asteroids and comets, Mt. Bigelow.

📷 Canon 80D

#photography #astrophotography #astronomy #science #planetarydefense #planetaryscience #nearearthobjects #neos #solarsystem #arizona #tucson
March 24, 2025 at 10:52 PM
comet-toolbox.com
Our article describing the Ateroid Framing Cameras on ESA's Hera mission is now available on arXiv arxiv.org/abs/2603.10594 #PlanetaryScience #PlanetaryDefense
The Asteroid Framing Cameras on ESA's Hera mission
As the first asteroid deflection test, NASA's successfully hit asteroid Dimorphos (secondary of the binary asteroid 65803 Didymos) with the DART kinetic impactor on September 26, 2022. To fully charac...
arxiv.org
March 12, 2026 at 9:20 AM
nasaupdates.bsky.social
NASA’s NEO Surveyor is taking shape! 🚀 This next-gen infrared telescope is built to hunt down "invisible" asteroids that lurk in the Sun’s glare. Launching as early as 2027, it’s our latest line of defense for protecting Earth. 🌍✨ #NASAScience #PlanetaryDefense #Asteroids

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Engineers attach the aluminum telescope for NASA’s NEO Surveyor to the flight base frame at Space Dynamics Laboratory in Logan, Utah, in September 2025. The telescope is connected via a system of struts that prevents heat from passing from the spacecraft to the instrument. Credit: Space Dynamics Laboratory/Allison Bills
May 7, 2026 at 3:51 PM
geophotographer.org
New analysis of NASA’s DART mission shows boulders ejected from Dimorphos formed clustered streams and carried more momentum than expected. The results raise concerns for asteroid deflection planning.
🧪🔭☄️
#DARTMission
#Asteroids
#PlanetaryDefense
#SpaceSafety
Paper
iopscience.iop.org/article/10.3...
Giant space 'boulders' unleashed by NASA's DART mission aren't behaving as expected, revealing hidden risks of deflecting asteroids
Debris released from the asteroid Dimorphos during NASA's DART mission has a higher momentum and less random distribution than expected, which "changes the physics we need to consider when planning th...
www.livescience.com
July 15, 2025 at 8:06 PM
stewstunes.com
Working on the "silly" weapons today. On deck we've got CAT-APULTS and Banana Peel Launchers #gamedev #indiegamedev #PlanetaryDefense
Code config file which defines 2 weapons in the game, first one is the CAT-APULT and 2nd is Banana Peel Launcer
October 25, 2025 at 10:47 AM