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31Planetary defense — Planetary defense, is the concept of protecting Earth (or another planet) from extraterrestrial threats such as near Earth objects or alien invasions.Mitigation of near Earth objectsNear Earth objects (NEOs) are asteroids, comets and large… …
32Terraforming of Mars — Artist s conception of the process of terraforming Mars. The terraforming of Mars is the hypothetical process by which the climate, surface, and known properties of Mars would be deliberately changed with the goal of making it habitable by humans …
33Lifeboat (shipboard) — A lifeboat is a small craft carried on a ship to provide a means of emergency evacuation in the event of a disaster aboard the ship. Lifeboats may be rigid or inflatable vessels; the inflatable type are sometimes referred to as liferafts . In the …
34Sky-Watcher — Infobox Company company type = Corporation foundation = 1980 location city = Richmond, British Columbia location country = Canada industry = Technology company slogan = For people curious enough to look up and wonder. homepage = http://www.sky… …
35Lick Observatory — the astronomical observatory of the University of California, situated on Mount Hamilton, near San Jose, California, and having a 120 in. (3 m) reflecting telescope and a 36 in. (91 cm) refracting telescope. * * * ▪ observatory, California,… …
