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This artist's concept shows NASA's Voyager spacecraft against a backdrop of stars.
NASA's Voyager spacecraft are the furthest human-made objects from Earth.
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China's Chang'e-4 lunar probe, taken by the Yutu-2 moon rover, on the far side of the moon.
China's Chang'e-4 lunar probe, taken by the Yutu-2 moon rover, on the far side of the moon.
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black hole event horizon shadow accretion disk spiraling illustration eso1644b
An artist's impression of a rapidly spinning supermassive black hole surrounded by a disc of super-heated material.
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Photo of dented Multi-Layer Insulation on board the Peregrine mission.
This image taken from Peregrine after launch showed damage to the lander's outer sheeting.
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This artist's concept shows the entire sky in gamma rays with magenta circles illustrating the uncertainty in the direction from which more high-energy gamma rays than average seem to be arriving.
An artist's concept shows the entire sky in gamma rays with magenta circles illustrating the uncertainty in the direction from which more high-energy gamma rays than average seem to be arriving
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Concept image of the United States Air Force's proposed Manned Orbiting Laboratory.
Concept image of the United States Air Force's proposed Manned Orbiting Laboratory.