medium clouds
51Herbig-Haro object — Herbig Haro objects are small patches of nebulosity associated with newly born stars, and are formed when gas ejected by young stars collides with clouds of gas and dust nearby at speeds of several hundred kilometres per second. Herbig Haro… …
52telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
53Cyclopropenylidene — IUPAC name …
54Star — For other uses, see Star (disambiguation) …
55Titan (moon) — Titan Titan in 2005 by Cassini spacecraft Discovery Discovered by Christiaan Huygens …
56solar system — the sun together with all the planets and other bodies that revolve around it. [1695 1705] * * * The Sun, its planets, and the small bodies (see asteroid, Centaur object, comet, Kuiper belt, meteorite, and Oort cloud) interplanetary dust and gas… …
57Cory Arcangel — Born May 25, 1978 (1978 05 25) (age 33)[1] Buffalo, New York …
58performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
59Hydronium — Hydronium …
60IC 443 — Supernova name = [http://simbad.u strasbg.fr/simbad/sim id?protocol=html Ident=ic+443 Supernova Remnant IC 443] caption = Part of the northeastern shell of IC 443, aka the Jellyfish Nebula. Credit: Jean Charles Cuillandre (CFHT), Hawaiian… …
