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Earth’s Upper Atmosphere
Earth’s Upper Atmosphere

The Earth’s atmosphere has four primary layers: the troposphere, stratosphere, mesosphere, and thermosphere. These layers protect our planet by absorbing…

Components of the Heliosphere
Components of the Heliosphere

The Heliosphere is the outer atmosphere of the Sun and marks the edge of the Sun’s magnetic influence in space.

Earth’s Magnetosphere
Earth’s Magnetosphere

The inner magnetosphere is composed of three populations of charged particles that are trapped in the Earth’s magnetic field.

Graphic of the Upper Atmosphere
Graphic of the Upper Atmosphere

The Earth’s atmosphere has four primary layers: the troposphere, stratosphere, mesosphere, and thermosphere.

Remembering the Apollo 1 Crew
Remembering the Apollo 1 Crew

On Jan. 27, 1967, veteran astronaut Gus Grissom, first American spacewalker Ed White and rookie Roger Chaffee (left-to-right) were preparing…

Crew Trains in Station Cupola Mock-Up
Crew Trains in Station Cupola Mock-Up

JSC2013-E-007020 (18 Jan. 2013) — Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata (left), Expedition 38 flight engineer and Expedition…

F-1 Engine Gas Generator Test at Marshall
F-1 Engine Gas Generator Test at Marshall

The gas generator from an F-1 engine is test-fired at the Marshall Space Flight Center in Huntsville, Ala., on Jan.…

Moons at Work
Moons at Work

The ring-region Saturnian moons Prometheus and Pan are both caught “herding” their respective rings in this image. Through their gravitational…

Spacecraft Checkout
Spacecraft Checkout

Inside the Astrotech payload processing facility near NASA’s Kennedy Space Center in Florida, the Tracking and Data Relay Satellite, TDRS-K,…

Large Magellanic Cloud
Large Magellanic Cloud

Nearly 200,000 light-years from Earth, the Large Magellanic Cloud, a satellite galaxy of the Milky Way, floats in space, in…