dust-loss test
51White dwarf — For other uses, see White dwarf (disambiguation). Image of Sirius A and Sirius B taken by the Hubble Space Telescope. Sirius B, which is a white dwarf, can be seen as a faint pinprick of light to the lower left of the much brighter Sirius A …
52Space debris — populations seen from outside geosynchronous orbit (GEO). Note the two primary debris fields, the ring of objects in GEO, and the cloud of objects in low earth orbit (LEO) …
53eye disease — Introduction any of the diseases or disorders that affect the human eye (eye, human). This article briefly describes the more common diseases of the eye and its associated structures, the methods used in examination and diagnosis, and the… …
54Cassini–Huygens — Artist s concept of Cassini s Saturn Orbit Insertion Operator NASA / ESA / ASI Mission type …
55Apollo Moon Landing hoax conspiracy theories — are claims that some or all elements of the Apollo Moon landings were faked by NASA and possibly members of other involved organizations. Some groups and individuals have advanced various theories which tend, to varying degrees, to include the… …
56Film preservation — Stacked containers filled with reels of film stock. The film preservation, or film restoration, movement is an ongoing project among film historians, archivists, museums, cinematheques, and non profit organizations to rescue decaying film stock… …
57Phoenix (spacecraft) — This article is about the Mars lander. For the Star Trek spacecraft, see Phoenix (Star Trek). For other uses, see Phoenix (disambiguation). Phoenix Mars Mission Artist s impression of the Phoenix spacecraft as it lands on Mars Operator NASA …
58Moon landing — For other uses, see Moon landing (disambiguation). Still frame from the video transmission of Neil Armstrong stepping onto the surface of the Moon at 02:56 UTC on 21 July 1969. An estimated 500 million people worldwide watched this event,… …
59JOB, BOOK OF — (named for its hero (Heb. אִיּוֹב), ancient South Arabian and Thamudic yʾb; Old Babylonian Ayyābum, Tell el Amarna tablet, no. 256, line 6, A ia ab; either from yʾb, to bear ill will or compounded of ay where? and ʾab (divine) father ), one of… …
60General relativity — For a generally accessible and less technical introduction to the topic, see Introduction to general relativity. General relativity Introduction Mathematical formulation Resources …
