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The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy...

Mimas, also designated Saturn I, is the seventh-largest natural satellite of Saturn. With a mean diameter of 396.4 kilometres or 246.3 miles, Mimas is...

A coronal mass ejection (CME) is a significant ejection of magnetic field and accompanying plasma mass from the Sun's corona into the heliosphere. CMEs...

Libra /ˈliːbrə/ is a constellation of the zodiac and is located in the Southern celestial hemisphere. Its name is Latin for weighing scales. Its old astronomical...

The Langley Research Center (LaRC or NASA Langley), located in Hampton, Virginia near the Chesapeake Bay front of Langley Air Force Base, is the oldest...

In spaceflight, an orbital maneuver (otherwise known as a burn) is the use of propulsion systems to change the orbit of a spacecraft. For spacecraft far...

Lacerta is one of the 88 modern constellations defined by the International Astronomical Union. Its name is Latin for lizard. A small, faint constellation...

RazakSAT is a Malaysian Earth observation satellite carrying a high-resolution camera. It was launched into low Earth orbit on 14 July 2009. It was placed...

Armadillo Aerospace was an aerospace startup company based in Mesquite, Texas. Its initial goal was to build a crewed suborbital spacecraft capable of...

A synchronous orbit is an orbit in which an orbiting body (usually a satellite) has a period equal to the average rotational period of the body being orbited...

Internet Routing in Space (IRIS) was a program to build a radiation-tolerant IP router created by Cisco Systems for satellite and related spacecraft. It...

Satellite Orbiting Rocket Number 420 (Indonesian: Roket Pengorbit Satelit 420, abbreviated as RPS-420), or Pengorbitan-1, was a proposed space launch vehicle...

Charles Kohlhase (born 1935) worked for forty years at NASA/JPL leading the design of several robotic deep-space planetary missions. He is also an author...

A hosted payload is a module attached to a commercial satellite with communications circuitry that operates independently of the main spacecraft but which...

The InterPlanetary Network (IPN) is a group of spacecraft equipped with gamma ray burst (GRB) detectors. By timing the arrival of a burst at several spacecraft...

Pioneer Rocketplane was an aerospace design and development company intent on developing affordable crewed space flight. The company is most famous for...

Missile Row was a nickname given in the 1960s to the United States Space Force and NASA launch complexes at Cape Canaveral Space Force Station (CCSFS)...

MidSTAR, a project of the United States Naval Academy (USNA) Small Satellite Program (SSP), is a general-purpose satellite bus capable of supporting a...

Space Internetworking Center (SPICE) (Greek: Κέντρο Διαστημικής Διαδικτύωσης) in Xanthi, Greece, was founded in September 2010, having acquired funding...