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APOD: 2012 November 11 – Bailys Beads near Solar Eclipse Totality
APOD: 2012 November 11 – Bailys Beads near Solar Eclipse Totality

APOD Science APOD APOD: 2012 November 11 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss  …

APOD: 2012 November 10 – Polar Ring Galaxy NGC 660
APOD: 2012 November 10 – Polar Ring Galaxy NGC 660

APOD Science APOD APOD: 2012 November 10 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss  …

BBC ‘Stargazing Live’ Interviews John Mather About Webb
BBC ‘Stargazing Live’ Interviews John Mather About Webb

Dr. John Mather was interviewed by a producer of the BBC program "Stargazing Live" outside a clean room at NASA's…

A Clear Reflection on Webb Telescope’s Secondary Mirror
A Clear Reflection on Webb Telescope’s Secondary Mirror

The sole secondary mirror and another primary mirror that will fly aboard NASA's James Webb Space Telescope arrived at NASA's…

Data Returned by RBSP’s REPT-A Instrument
Data Returned by RBSP’s REPT-A Instrument

Data from REPT-A, powered up on Sept. 1, clearly shows the outer belt's high electron count (top two graphs) and…

Simulated Radiation Belts
Simulated Radiation Belts

In this 1966 photo, a plasma thruster at NASA's Lewis Research Center simulates Van Allen Belts, rings of radiation around…

Separation
Separation

This artist rendering shows the twin Radiation Belt Storm Probes as they will appear shortly after they have separated from…

Webb Telescope’s Secondary Mirror Looks Like Giant Sun
Webb Telescope’s Secondary Mirror Looks Like Giant Sun

The round, gold coated secondary mirror that will fly aboard NASA's James Webb Space Telescope looks like a giant sun…

Geospace Storms
Geospace Storms

The source of space weather, our dynamic sun, shown with a coronal mass ejection that will interact with the terrestrial…

Relativistic Electron Proton Telescope (REPT)
Relativistic Electron Proton Telescope (REPT)

The Relativistic Electron Proton Telescope (REPT) instrument of the Energetic Particle, Composition, and Thermal Plasma Suite (ECT) for the Radiation…