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RCW 108 is a region where stars are actively forming within the Milky Way galaxy
ARP15A02_069

RCW 108 is a region where stars are actively formi...

Kepler's Supernova Remnant
ARP15A02_207

Kepler's Supernova Remnant

Artist's concept of what the night sky might look like
ARP15A02_200

Artist's concept of what the night sky might look ...

A regenerative x-ray tube, which by two lightbulbs, allowed a more efficient vacuum to be created
ARP23A15_432

A regenerative x-ray tube, which by two lightbulbs...

A regenerative x-ray tube, which by two lightbulbs, allowed a more efficient vacuum to be created
ARP23A15_431

A regenerative x-ray tube, which by two lightbulbs...

A mirage being observed just before sunrise
ARP23A15_221

A mirage being observed just before sunrise

Light in darkest Russia by Udo Keppler
ARP18A01_281

Light in darkest Russia by Udo Keppler

Le Triomphe de la religion
ARP18A09_172

Le Triomphe de la religion

Satan tempting Booth to the murder of the President
ARP18A01_488

Satan tempting Booth to the murder of the Presiden...

The salute from Grand Canal 1905, by Joseph Pennell, 1857-1926
ARP18A01_135

The salute from Grand Canal 1905, by Joseph Pennel...

Lincoln's assassin being goaded by the devil
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Lincoln's assassin being goaded by the devil

President McKinley as Moses
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President McKinley as Moses

The American Declaration of Independence
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The American Declaration of Independence

First illustration of a magic lantern
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First illustration of a magic lantern

A periscope is an instrument for directing rays of light from one direction to another
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A periscope is an instrument for directing rays of...

This image
ARP17A23_011

This image

Concave lens with arrows showing the divergence of rays of light.
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Concave lens with arrows showing the divergence of...

NASA's Great Observatories Examine the Galactic Center Region
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NASA's Great Observatories Examine the Galactic Ce...

NASA's Great Observatories Examine the Galactic Center Region
ARP11A03_135

NASA's Great Observatories Examine the Galactic Ce...

"South Pillar" region called the Carina Nebula
ARP11A03_127

"South Pillar" region called the Carina Nebula

Chapel of the Carmelites
ARP07109_0510000269

Chapel of the Carmelites

Ludovico MAZZOLINO
ARP07109_0510000392

Ludovico MAZZOLINO

Descartes' explanation of vision
ARP07103_460000321

Descartes' explanation of vision