Space

Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached ...

A Bubble Starbursts in Milky Way

A Bubble Starbursts in Milky Way

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Black Holes Have Simple Feeding Habits (Galaxy M81)

Black Holes Have Simple Feeding Habits (Galaxy M81)

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Bow Shock Near a Young Star, Great Nebula in Orion

Bow Shock Near a Young Star, Great Nebula in Orion

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From the Ashes of the First Stars - Primordial Quasar

From the Ashes of the First Stars - Primordial Quasar

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ISS Expedition 20 Crew Lands in Kazakhstan

ISS Expedition 20 Crew Lands in Kazakhstan

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NASA - Black Hole Grabs Starry Snack

NASA - Black Hole Grabs Starry Snack

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NASA - Neptune

NASA - Neptune

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Ringside with Dione, Saturn's Icy Moon

Ringside with Dione, Saturn's Icy Moon

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Surface Of Venus

Surface Of Venus

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Mars' Shifting Sands, Northern Hemisphere of Mars

Mars' Shifting Sands, Northern Hemisphere of Mars

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May 5, 1961 - Astronaut Alan Shepard, First American in Space

May 5, 1961 - Astronaut Alan Shepard, First American in Space

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NASA - The Glowing Eye Nebula, NGC 6751

NASA - The Glowing Eye Nebula, NGC 6751

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USA Spacecraft Space Shuttle Rocket

USA Spacecraft Space Shuttle Rocket

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Earth Seen from the International Space Station

Earth Seen from the International Space Station

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A Faint Afterglow - Supernova N132D Remnant

A Faint Afterglow - Supernova N132D Remnant

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