From the ground, Earth looks like a boundless fertile plain that beckons to be explored and exploited.
But astronauts would beg — and even plead — to differ.
"You realize that people often say, 'I hope to go to heaven when I die,'" Jim Lovell, an astronaut who flew on the Apollo 8 and Apollo 13 missions to the moon, recently told Business Insider. "In reality, if you think about it, you go to heaven when you're born."
Lovell has seen first-hand that we live on a tiny rock hopelessly lost in the void. He's also quick to tell you it's the only one we've got — a fragile spaceship for 7 billion people and counting:
"You arrive on a planet that has the proper mass, has the gravity to contain water and an atmosphere, which are the very essentials for life. And you arrive on this planet that's orbiting a star just at the right distance — not too far to be too cold, or too close to be too hot — and just at the right distance to absorb that star's energy and then, with that energy, cause life to evolve here in the first place. In reality, you know, God has really given us a stage, just looking at where we were around the moon, a stage on which we perform. And how that play turns out is up to us, I guess."
Humanity has recorded photos of Earth from hundreds, thousands, millions, and even billions of miles away, some of them taken by Lovell himself.
These images not only help scientists study our dynamic world, but also understand how a habitable planet looks from afar, which aids the search for more worlds. Most importantly, however, the images underscore our peculiar existence on a mote of cosmic dust.
Take a moment to ponder 25 of the most arresting images of Earth that humankind has ever captured from space.
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A few rare satellites enjoy a full view of Earth from thousands or even a million miles away.
Taken by: Suomi National Polar-orbiting Partnership (Suomi NPP) spacecraft
Date: April 9, 2015
NASA and NOAA created this composite image using photos taken by Suomi NPP, a weather satellite that orbits Earth 14 times a day. You can see the Joalane tropical cyclone in the Indian Ocean (top right).
Source: NASA
Their unending gaze helps us monitor the health of our world while catching rare alignments of the sun, moon, and Earth.
Taken by: Geostationary Operational Environmental Satellite-16 (GOES-16)
Date: January 15, 2017
GOES-16 launched on November 19, 2016, and orbits about 22,300 miles (35,900 kilometers) above Earth — a position called geostationary orbit. This allows the satellite to stay above the same spot and monitor changes in the atmosphere, ground, and ocean over time. The spacecraft regularly sees the moon and uses it to calibrate cameras.
Source: NOAA
They even catch the moon's drifting shadow during solar eclipses.
Taken by: Deep Space Climate Observatory (DSCOVR)
Date: March 9, 2016
Orbiting from a million miles away, NASA's DSCOVR satellite always views this sunlit half of our planet. This allowed it to take 13 images of the moon's shadow as it raced across Earth during the total solar eclipse of 2016. Together they make up one of the most complete views ever of the event.
Source: NASA
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