Voyager 1 deep space

Voyager 1 is the farthest human-made object from Earth, launched in 1977 to explore Jupiter and Saturn, now traveling through interstellar space.

About this subject

Voyager 1 was launched by NASA on September 5, 1977, with the primary mission of studying Jupiter and Saturn. During its Jupiter flyby in 1979, it revealed unprecedented details of the Great Red Spot and discovered active volcanoes on the moon Io. At Saturn in 1980, it detected complex ring structures and analyzed the atmosphere of Titan, the largest moon of the gas giant. These findings reshaped our understanding of the outer Solar System.

On February 14, 1990, the probe was commanded to turn its cameras back toward Earth, resulting in the iconic 'Pale Blue Dot' photograph, at the request of astronomer Carl Sagan. The image shows Earth as a tiny speck of light amidst scattered sunlight, captured from about 6 billion kilometers away. Sagan elaborated on the philosophical significance of this portrait of our planet, emphasizing the fragility and unity of humanity.

On August 25, 2012, Voyager 1 crossed the heliopause, the boundary where the solar wind meets the interstellar medium, becoming the first human-made object to enter interstellar space. Since then, it has continued collecting data on cosmic rays and magnetic fields outside the Sun's influence, though its instruments are gradually being shut down to conserve power. The plutonium batteries are expected to sustain operations until around the mid-2020s.

The probe carries the Golden Record, a gold-plated phonograph record containing greetings in 55 languages, natural sounds, music from various cultures, and encoded images of life on Earth. Conceived by Carl Sagan and his team, the record is a message for any extraterrestrial civilization that may encounter it, representing the diversity and creativity of humanity. Voyager 1 will continue its silent journey through the galaxy for billions of years, standing as a testament to space exploration.

Frequently Asked Questions

What is Voyager 1?

Voyager 1 is a NASA robotic space probe launched in 1977 to study Jupiter and Saturn. It is now the farthest human-made object from Earth, traveling through interstellar space.

How far is Voyager 1 from Earth?

As of 2024, Voyager 1 is over 24 billion kilometers away from our planet, a distance that increases by about 17 kilometers per second.

What is the 'Pale Blue Dot'?

It is a famous photograph of Earth taken by Voyager 1 in 1990, at the request of Carl Sagan. The image shows our planet as a tiny, bright spot against the vastness of space, highlighting humanity's smallness and fragility.