Glycol ethers are a group of solvents based on alkyl ethers of ethylene glycol or propylene glycol commonly used in paints and cleaners. These solvents typically have a higher boiling point, together with the favorable solvent properties of lower-molecular-weight ethers and alcohols. The word "Cellosolve" was registered in 1924 as a United States trademark by Carbide & Carbon Chemicals Corp.
Asteroid mining is the exploitation of raw materials from asteroids and other minor planets, including near-Earth objects.Minerals can be mined from an asteroid or spent comet then used in space for construction materials or taken back to Earth. These include.
Gold
Iridium
Silver,
osmium,
Palladium,
Platinum,
Rhenium,
Rhodium,
Ruthenium,
and Tungsten for transport back to Earth;
Iron,
Cobalt,
Manganese,
Molybdenum,
Nickel,
Aluminum,
and Titanium for construction.
Space manufacturing is the production of manufactured goods in an environment outside a planetary atmosphere. Typically this includes conditions of microgravity and hard vacuum. Manufacturing in space has several potential advantages over the Earth-based industry.