A small asteroid came within a cosmic hairbreadth of the ring of communications satellites circling the Earth in geosynchronous orbit this week. Passing by our planet at an altitude of about 35,000 km ...

A geosynchronous orbit (sometimes abbreviated GSO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours, 56 minutes, and 4 seconds (one sidereal day).

Geosynchronous Space Situational Awareness Program (GSSAP) artist rendering. Credit: U.S. Air Force NATIONAL HARBOR, Md. – At the request of unspecified users, the U.S. Air Force has twice taken a ...

A SpaceX Falcon Heavy launched from Florida, bringing double sonic booms to Brevard County as its boosters landed.

It's been decades since humanity first sent a satellite into orbit, and during all this time we kind of become experts at it. What we still haven't mastered yet is extending the life of these ...

Space Operations Command has accepted Geosynchronous Space Situational Awareness Program (GSSAP) satellites 5 and 6 as operationally capable and has presented them to United States Space Command for ...

A geosynchronous orbit is a geocentric orbit that has the same orbital period as the sidereal rotation period of the Earth. It has a semi-major axis of 42,164 km (26,200 miles). In the special case of ...

For many college students, satellites are faint dots crossing the sky on clear nights. These objects are background details from science fiction to reality, like GPS, satellite radio, and WiFi. A NASA ...