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Astronomy
The scientific study of planets, stars, black holes, comets and other celestial bodies that make up outer space.
13Categories 47688Terms
Add a new termContributors in Astronomy
Astronomy > Solar system 
interplanetary magnetic field (IMF)
Astronomy; Planetary science
The magnetic field carried with the solar wind. The IMF is kept out of most of the Earth’s magnetosphere, but the interaction of the two plays a major role in the flow of energy ...
heliopause
Astronomy; Solar system
The region in space where the Sun's atmosphere merges with interstellar space. The position of the heliopause depends both on the strength of the solar wind and on the properties ...
gamma ray bursts (GRB)
Astronomy; Solar system
Short-lived sudden explosions of gamma-ray photons, the most energetic form of light. Lasting anywhere from a few milliseconds to several minutes, gamma-ray bursts shine hundreds ...
chromosphere
Astronomy; Solar system
The solar atmosphere layer that is above the photosphere and beneath the transition region and the corona. It is visible during eclipses as a bright red ring around the Sun. It's ...
alien particles
Astronomy; Galaxy
Space matters that make their way to the Earth from other parts of the galaxy outside of the solar system. The solar system inside the Milky Way is surrounded by the heliosphere ...
S/2004 N 1
Astronomy; Solar system
A small moon of Neptune that was discovered in July 2013 by Michael Showalter of the SETI Institute. Showalter discovered the small moon while studying images of Neptune's ring ...
Callisto
Astronomy; Solar system
The fourth Galilean moon outward from Jupiter discovered in 1610 by Galileo Galilei. It is the third-largest moon in the Solar System with a diameter of 4,820 km. The length of ...
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- Solar system (663)