Apr 12, 2022 · A satellite is an object that is in orbit around an object in space of a larger size. Things such as the Earth's Moon or Pluto's Charon are natural satellites. Humans have also created artificial …

Earth's natural satellite is the Moon, but many objects in our Solar System have multiple natural satellites. Humans have also created artificial satellites—human-made machines and spacecraft in …

Today, hundreds of civilian and military applications satellites ring the Earth, often operating side-by-side in orbit. They provide similar services—communications, photography, remote sensing, weather …

This satellite represents the first generation of space-based, commercial radio service developed by Sirius Radio, a U.S. company (now Sirius XM Radio). Designed in 1987 and initiating service in …

Aug 9, 2022 · Learn about three ways that satellites have led to a better understanding of how we affect our environment.

Telstar was one of the most significant communications satellites of the early space age. It raised an important policy question: Should communications satellites be operated and controlled by private …

A natural satellite is a naturally occurring object that is in orbit around an object in space of a larger size. Earth's natural satellite is the Moon, but many objects in our Solar System have multiple natural …

Military reconnaissance is an operation to obtain information relating to the activities, resources, or military forces of a foreign nation or armed group. It uses balloons, aviation, and space technology …

This satellite is the heart of a space-based communications system called Iridium. Conceived, designed, and built by Motorola, the Iridium system provides wireless, mobile communications through a …

TIROS I, and a series of successor test satellites, provided the technical experience to start separate civilian and military space-based weather observation programs. By the mid 1960s, the civilian …