tenuous
41Rings of Saturn — The full set of main rings, imaged as Saturn eclipsed the Sun from the vantage of the Cassini spacecraft on 15 September 2006 (brightness is exaggerated). The pale blue dot at the 10 o clock position, outside the main rings and just inside the G… …
42Atmosphere of Mercury — Atmosphere of Mercury[1] Species CD,[n 1] cm−2 SD,[n 2] cm−3 …
43Chris Evans Drivetime — Other names The Chris Evans Show Genre Music, Talk Running time 2 hours Country United Kingdom Languages …
44thin — I. adjective (thinner; thinnest) Etymology: Middle English thinne, from Old English thynne; akin to Old High German dunni thin, Latin tenuis thin, tenēre to hold, tendere to stretch, Greek teinein Date: before 12th century 1. a. having little… …
45Mercury (planet) — Mercury  ☿ …
46Hubble Space Telescope — Infobox Space telescope name = Hubble Space Telescope (HST) caption = The Hubble Space Telescope as seen from Space Shuttle Discovery during its second servicing mission (STS 82) organization = NASAESASTScI alt names = nssdc id =… …
47X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… …
48Triton (moon) — Triton Voyager 2 photomosaic of Triton s sub Neptunian hemisphere. The bright, slightly pinkish, south polar cap at bottom is composed of nitrogen and methane ice and is streaked by dust deposits left by nitrogen gas geysers. The mostly darker… …
49Suez Crisis — The Tripartite Aggression The Sinai War Part of the Cold War and the Arab–Israeli conflict …
50Grade (climbing) — Rock climbing History Styles Technique Equipment and protection Grades (difficulty of climb) Terminology Belaying Abseiling …
