The head of the National Aeronautics and Space Administration, or NASA, said that the space agency is on track to land people on Mars in the 2030s.
Medical adhesive products are becoming more common.
You may have heard about a process called 3-D printing.
Last month, 150 people were killed when Germanwings Flight 9525 crashed in the French Alps.
Large governmental organizations controlled the production of seeds in Africa for many years.
The Hon Hai company is based in Taiwan and operates factories in China.
Tim Cook, the CEO of Apple, showed off their newest device, the Apple Watch.