#neosurveyor — Public Fediverse posts

#NASA’s #NEOSurveyor mission is now slated for no earlier than 📆 mid-2027, will spend at least five years scanning for potentially hazardous #asteroids ☄️ larger than 140 meters.

#NEOHunter - nearly nine times more massive than #DART - could execute a direct high-energy impact 💥, delivering approximately 1.5 times the kinetic energy
https://www.nasaspaceflight.com/2026/03/blue-origin-neo-hunter-planetary-defense/

#BlueOrigin #AsteroidThreat

More than half of the “city killer” 🌃 #asteroids ☄️ that might threaten Earth remain undiscovered. The blast from an #asteroid of 140 meter 📏 would be roughly 600 times 📈 more destructive 💥 than #Chelyabinsk, because a doubling in diameter increases a space rock’s kinetic energy by eight times. Observing 🔭 in the infrared, #NEOSurveyor* will see those hidden asteroids glow like fireflies in the night https://www.science.org/content/article/nasa-telescope-will-hunt-down-city-killer-asteroids

* Launch 🚀 September 2027 https://science.nasa.gov/mission/neo-surveyor

#NASA #astronomy

#Roman has the high sensitivity to measure the physical properties, compositions, and orbital trajectories of #NEOs ☄️ in order to understand their physical nature and potential #hazards to Earth. Roman's #PlanetaryDefense capabilities complement those of the operational ground-based @VRubinObs 🔭 and the upcoming #space-based 🌌 #NEOSurveyor https://arxiv.org/abs/2508.14412

🚀 October 2026 - May 2027 https://nextspaceflight.com/launches/details/6983

#AsteroidThreat #SpaceTelescope #RomanSpaceTelescope

The first step in averting an #asteroid ☄️ impact 💥 with Earth is just to know what near-Earth objects are out there 🔭. Plenty of city-killer asteroids remain lurking and undiscovered, potentially still posing a real risk to life on the planet. In the 50-meter range, a meager 7 percent 📊 of #NEOs have been found. @VRubinObs and #NEOSurveyor will locate an anticipated 90 percent of the entire population of objects 140 meters 📏 and larger https://spectrum.ieee.org/planetary-defense-killer-asteroids

#AsteroidThreat #Astronomy

#NEOWISE will be followed by #NEOSurveyor : https://www.jpl.nasa.gov/missions/near-earth-object-surveyor/

📆 Dec 22, 2022 “Ground-based #telescopes 🔭 remain essential for us to continually watch 👀 the skies 🌌, but a #SpaceBased infrared #observatory is the ultimate high ground that will enable #NASA’s #PlanetaryDefense strategy”. The #NEOSurveyor will view the #SolarSystem in infrared wavelengths. Because those wavelengths are mostly blocked by #Earth’s 🌏 #atmosphere, larger ground-based observatories 📡 may miss #NEO ☄️ that this #SpaceTelescope will be able to spot by using its modest light-collecting aperture of nearly 50 centimeters 📏. https://www.nasa.gov/centers-and-facilities/marshall/construction-begins-on-nasas-next-generation-asteroid-hunter/

#NEOSurveyor is expected to be launched no later than 📆 June 2028 https://en.wikipedia.org/wiki/NEO_Surveyor

#AsteroidThreat