The Blue Marble

A man took a famous photo of Earth.

It looks like a small blue marble. The man was on a trip to the Moon. He saw the whole world at once.

The photo shows many things. You can see parts of Africa. You can see the big blue ocean. There are also white clouds.

One big storm is in the picture too. It is a spinning storm in the ocean. The photo helps us see our home. It is a very special view of Earth.

In 1972, an astronaut named Harrison Schmitt took a famous photo.

He was on the Apollo 17 mission. This was the last trip where humans went to the Moon. The photo is called "The Blue Marble." To the crew, the Earth looked like a small glass marble.

The picture shows many parts of our world. You can see the coast of Africa and Madagascar. The Indian Ocean is also easy to see. You can even spot a cyclone, which is a large spinning storm. This storm was near the center of the image.

The photo shows the South Pole too. This was the first time a mission could take a photo of that icy area.

Later, NASA made new images called composites. A composite is a picture made from many smaller photos. They do this because clouds often hide the ground. By using many shots, they can show a clear view of the whole Earth. These new images help us see our planet in great detail.

The Blue Marble is one of the most famous photos ever taken.

It shows our home planet from deep space. This image helps us see how small and alone Earth is. It also shows how fragile our world can be. Many people use this image to think about the environment. It has become a powerful symbol for protecting nature.

To make this photo, an astronaut used a special camera.

The camera was a 70-millimeter Hasselblad with a Zeiss lens. The astronaut was on a path toward the Moon. They looked back and saw the Earth below them. To the crew, the planet looked like a small glass marble. The sun was above the spacecraft at that time. This lighting helped show the bright colors of the Earth.

This famous photo was taken in December 1972.

Harrison Schmitt was the astronaut on the Apollo 17 mission. Apollo 17 was the very last crewed mission to the Moon. The photo was taken at 5:39 a.m. EST. It happened about two hours after the ship left Earth's orbit. While the crew members Gene Cernan and Ronald Evans also took photos, evidence suggests Schmitt took this one. It is a very special piece of history from the Apollo era.

The photo shows many amazing details of our world. You can see the coast of Africa and Madagascar. The Indian Ocean is also very clear in the view. You can even see a cyclone near the center of the image. This storm was called the Shapyro–Keyser cyclone. The image also shows the South Pole for the first time. This was possible because of the specific path the spacecraft took. Many different lands like Australia and South America are on the edges.

Today, scientists still use the name "Blue Marble" for new images.

Since we cannot take one perfect photo of the whole Earth at once, we use composites. A composite is a picture made by joining many smaller photos together. NASA used this method in 2012 to make very clear images. They looked through many satellite pictures to find parts without clouds. They also made "Black Marble" images to show city lights at night. These tools help us study how humans use the planet every day.

The Blue Marble is one of the most famous photographs in human history.

It provides a stunning view of our home planet from the vastness of space. This specific image is highly significant because it captures Earth as a single, beautiful object. It has become a powerful symbol for the environmental movement. Many people use it to represent the fragility and isolation of our world. It reminds us that Earth is a small, vulnerable place in a massive universe.

To capture this image, an astronaut used specialized equipment during a space mission. The photographer used a 70-millimeter Hasselblad camera. This camera was equipped with an 80-millimeter Zeiss lens. The photo was taken on December 7, 1972. At that time, the Apollo 17 spacecraft was traveling toward the Moon. The mission was about five hours and six minutes past its launch. The crew had left their parking orbit around Earth about one hour and 54 minutes earlier. To the astronauts, the Earth appeared small, much like a glass marble.

The photograph shows a wide variety of geographical features and weather patterns. Because of the spacecraft's specific trajectory, it was the first time the South Pole ice cap was photographed. The image shows the Mediterranean Sea and the coastline of Africa. You can also see Madagascar and most of the Indian Ocean. A cyclone known as the Shapyro–Keyser is visible near the center. Another storm, Cyclone Sixteen (16B), appears in the upper right. This storm had recently caused high winds and flooding in Tamil Nadu. The South Asian mainland and Australia appear on the eastern limb.

While NASA often credits entire crews for mission photos, the identity of this photographer is a subject of study. The Apollo 17 crew included Gene Cernan, Ronald Evans, and Harrison Schmitt. All three members took photographs using the onboard Hasselblad. However, evidence examined by researcher Eric Hartwell suggests that Harrison Schmitt was the one who took this specific shot. This was a historic moment because Apollo 17 was the final crewed mission to the Moon. No human has since traveled far enough from Earth to take a similar whole-Earth photograph.

Before this photo, people had seen images of Earth from satellites. For example, the ATS-3 satellite released images as early as 1967. In 1968, Stewart Brand used a satellite image for his Whole Earth Catalog. Brand had campaigned to see the entire Earth from space. He even sold buttons for 25 cents asking why such a photo did not exist yet. The 1972 Blue Marble photograph arrived during a surge of environmental activism. It helped people visualize the planet as a single, interconnected system.

Today, the term "Blue Marble" is used for many different types of Earth imagery. Since it is impossible to capture the entire globe perfectly in one shot, scientists create composites. A composite is a single image made by combining many different photographs. In 2012, NASA released a series of high-resolution Blue Marble images. These were created by looking through many satellite pictures to find cloudless areas. These 2012 images were made from data taken by the Suomi NPP satellite. This satellite uses a tool called the Visible/Infrared Imager Radiometer Suite (VIIRS).

Another fascinating version of these images is called the "Black Marble." These images show the Earth at night to highlight human activity. They use data from the Suomi NPP satellite to map things that glow. This includes city lights, gas flares, auroras, and wildfires. The Black Marble images help scientists study how humans use the planet's resources. They can also help find the best places for astronomical observatories. By looking at the light from space, we can see the patterns of our global civilization.

Modern technology continues to provide new views of our world. In 2015, the DSCOVR satellite released a new Blue Marble photograph. This satellite was launched in February 2015 to observe solar weather and Earth. It provides a nearly continuous view of the sunlit side of our planet. The DSCOVR images are color-corrected to look like what a human eye would see. This allows us to see the Western Hemisphere with great clarity. These new images represent a continuation of the journey that began with Apollo 17.