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Moon landing
Arrival of a spacecraft on the Moon's surface
A Moon landing or lunar landing is the arrival of a crewed or robotic spacecraft on the Moon. The first human-made object to touch the Moon was Luna 2 in 1959, and the first crewed mission to land on …
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Group of antibiotics derived from fungi
Penicillin
Penicillins are a group of β-lactam antibiotics originally obtained from Penicillium moulds, principally P. chrysogenum …
Phenomena related to electric charge
Electricity
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric ch…
Global system of connected computer networks
Internet
The Internet is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to …