
Pathfinder on Mars
2026-07-04
On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.
via NASA APOD
2001 QR322 var den först upptäckta av Neptunus trojaner. Den upptäcktes 2001 av Deep Ecliptic Survey. Den har sin omloppsbana i Neptunus-Solens lagrangepunkt L4. Senast trojanen var i periheliepassage var den 4 november 1980. Nästa gång inträffar alltså i slutet av 2046. Det föreligger en mycket liten risk att 2001 QR322 kommer att ramla ur sin lagrangepunkt. Omloppsbanan får därför anses stabil.
Abstract from DBpedia / Wikipedia · CC BY-SA
via Wikidata · CC0
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).