
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
(101429) 1998 VF31是一顆小的小行星,它位於火星軌道的L5點,在火星軌道後方約60°處跟隨著火星。它以非常穩定的軌道圍繞著火星軌道上的拉格朗日點。經由分光鏡觀測得到的光譜與(5261) 尤里卡非常相似,暗示它們兩者可能都是原始的火星小行星。 在2007年的光譜觀測顯示它的表面有大量的金屬和無粒隕石(可能是中隕鐵也可能不是);這也可能是太空風化使得表面已經風化了。這些觀測也揭示了它與5261 尤里卡的差異,因此兩者也可能是毫無關聯的。
Abstract from DBpedia / Wikipedia · CC BY-SA
via Wikidata · CC0
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).