A magnetosphere is the area of space near an astronomical object in which charged particles are controlled by that object's magnetic field. Near the surface of the object, the magnetic field lines resemble those of an ideal magnetic dipole. Farther away from the surface, the f... Explore this topic

The Van Allen Probes are two robotic spacecraft being used to study the Van Allen radiation belts that surround Earth. NASA is conducting the Van Allen Probes mission as part of the Living With a Star program. Understanding the radiation belt environment and its variability ha... Explore this topic

Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies from 300 GHz to as low as 3 kHz, and corresponding wavelengths ranging from 1 millimeter to 100 kilometers. Like all ot... Explore this topic

The National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research. President Eisenhower established the National Aeronautics and Space Administr... Explore this topic

Space is the boundless three-dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional... Explore this topic

"Raw video" is a term used to describe unedited or minimally edited video footage, often used in a news context. It can include user-generated content, live video feeds (such as from a news helicopter or camera crew), footage obtained from a security camera, and more. Raw vide... Explore this topic

Reuters is an international news agency headquartered in London, United Kingdom and a division of Thomson Reuters. Until 2008, the Reuters news agency formed part of an independent company, Reuters Group plc, which was also a provider of financial market data. Since the acquis... Explore this topic