comets frequently
121Universe — For other uses, see Universe (disambiguation). Physical cosmology …
122Hubble 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 =… …
123X-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… …
124Vulcan (hypothetical planet) — Vulcan was a small planet proposed to exist in an orbit between Mercury and the Sun in a 19th century hypothesis. This hypothesis has now been rendered obsolete by Albert Einstein s theory of general relativity.Argument for Vulcan s existenceIn… …
125Triton (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… …
126Titan (moon) — Titan Titan in 2005 by Cassini spacecraft Discovery Discovered by Christiaan Huygens …
127Bayeux Tapestry — The Bayeux Tapestry ( fr. Tapisserie de Bayeux) is a 50 cm by 70 m (20 in by 230 ft) long embroidered cloth which explains the events leading up to the 1066 Norman invasion of England as well as the events of the invasion itself. The Tapestry is… …
128Ajalon — and Aij alon, place of deer. (1.) A town and valley at the lowland of Shephelah, originally assigned to the tribe of Dan, from which, however, they could not drive the Amorites (Judg. 1:35). It was one of the Levitical cities given to the… …
