NASA developed Space Harpoon to take Samples from Comets

NASA(National Aeronautics and Space Administration) built a prototype capable of launching test harpoon tips across a distance of a mile (1.6km). It would be safer to collect comet material using the space harpoon before landing on the celestial bodies.

 The samples thus collected will help reveal the origins of the planets and how life was created on Earth. NASA’s Stardust mission had recovered particle samples in 2002. These samples included an amino acid, glycine, which is used by living organisms to create proteins. It endorsed the fact that some of life’s ingredients had formed in space and were delivered to Earth by meteorite and comet impacts.

A comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes a tail.