
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
小行星8917(英語:8917)是一颗围绕太阳公转的小行星。1996年3月9日,北京天文台施密特CCD小行星计划在兴隆发现了此天体。以中国第一所现代大学天津大学命名。 “天津大学星”的命名缘起于2017年。为纪念入学40周年,一批来自77、78级的天津大学校友计划在回访母校时为母校“送星星”。为此自发成立“天津大学空天科学与工程俱乐部”,在其共同努力和国家天文台的支持下,“天津大学星”正式命名。 这颗小行星的绝对星等为169.7183878635419等。
Abstract from DBpedia / Wikipedia · CC BY-SA
via Wikidata · CC0
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).