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The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI. See also {{PD-Hubble}} and {{Cc-Hubble}}.
STEREO (Solar TErrestrial RElations Observatory) is a solar observation mission. [2] Two nearly identical spacecraft (STEREO-A, STEREO-B) were launched in 2006 into orbits around the Sun that cause them to respectively pull farther ahead of and fall gradually behind the Earth.
A coronal mass ejection (CME) is a significant ejection of plasma mass from the Sun's corona into the heliosphere. CMEs are often associated with solar flares and other forms of solar activity , but a broadly accepted theoretical understanding of these relationships has not been established.
According to NASA, nearly 40 CMEs occurred last week, but most did not cause space weather impacts on Earth. This photo shows a vivid northern lights display over a home in Alaska on Nov. 23, 2024.
The three-day May 1921 geomagnetic storm, also known as the New York Railroad Storm, was caused by the impact of an extraordinarily powerful coronal mass ejection on Earth's magnetosphere. It occurred on 13–15 May as part of solar cycle 15, and was the most intense geomagnetic storm of the 20th century. [1]
An example of space weather: Aurora australis in the Earth's atmosphere observed by Space Shuttle Discovery, May 1991. Space weather is the environmental condition within the Solar System, including the solar wind. It is studied especially surrounding the Earth, including conditions from the magnetosphere to the ionosphere and thermosphere.
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High Definition Earth Viewing (HDEV) cameras were a payload package delivered to the International Space Station on the SpaceX CRS-3 Mission, launched on April 18, 2014. [ 1 ] [ 2 ] The High-Definition Earth Viewing camera suite was carried aboard the Dragon spacecraft and is configured on a platform on the exterior of the European Space Agency ...