Voyager 1 Comes Back With New Scientific Data Gathered From Space

Two months after NASA crews reestablished diagnostic communications with Voyager 1, they recently received scientific observational data as well. This data, transmitted via the last remaining operational instruments aboard the furthest man-made object from Earth, offers critical observations on plasma and magnetism in interstellar space.

Voyager 1 has been journeying through space for 46 years and 7 months since its launch from Earth, and it has been 11 years and 8 months since it bid farewell to Pluto and exited our solar system. Currently, the probe is an astonishing 15 billion miles (24 billion kilometers) from Earth.

In March 2024, mission control at NASA’s Jet Propulsion Laboratory (JPL) at the California Institute of Technology managed to identify and address the issue that was preventing two-way communication with Voyager 1. The team diagnosed and fixed the problem by segmenting corrupted computer code into smaller sections and storing them in various locations on the probe’s flight data subsystem. They then ensured that the onboard computer could access and reassemble these sections correctly. Following these meticulous efforts, JPL issued commands on May 19th to restart the transmission of scientific data.

Upon receiving the commands, two of the four science instruments on Voyager 1 immediately returned to their normal operating modes. The remaining two instruments required additional work, but all four are now successfully returning usable scientific data. These instruments are dedicated to studying plasma waves, magnetic fields, and particles. Notably, Voyager 1 and its twin, Voyager 2, are the only spacecraft to have directly sampled interstellar space—the region outside the heliosphere, which is the protective bubble of magnetic fields and solar wind created by the Sun.

“We never know for sure what’s going to happen with the Voyagers, but it constantly amazes me when they just keep going,” said Suzanne Dodd, Voyager’s project manager, in an interview with CNN in April. The durability and resilience of these spacecraft have continued to astound scientists and space enthusiasts alike.

However, the longevity of the mission faces an inevitable challenge. Within the next year or slightly longer, some of the four instruments will have to be powered down due to the diminishing power of the probe’s battery. By 2036, Voyager 1 will depart from the Deep Space Network and will be beyond all means of communication, venturing deeper into the unknown. As it continues its silent voyage, Voyager 1 carries the Golden Record—a message to potential extraterrestrial life that contains sounds and images selected to portray the diversity of life and culture on Earth.

The ongoing mission of Voyager 1 serves as a testament to human curiosity and ingenuity. Despite being launched in 1977 with technology that pales in comparison to today’s advancements, Voyager 1 has provided invaluable data about the outer reaches of our solar system and beyond. Its journey has not only expanded our understanding of interstellar space but also inspired generations of scientists and engineers to push the boundaries of exploration.

The recent successful restoration of communication and data transmission with Voyager 1 highlights the extraordinary dedication and expertise of the teams at NASA and JPL. As Voyager 1 continues to send back data from its unprecedented journey, each transmission offers a new glimpse into the vast and mysterious expanse that lies beyond our solar system. This enduring mission underscores the profound and unending quest for knowledge that drives humanity to explore the cosmos.