Engineers at NASA's Jet Propulsion Laboratory have pulled off a remarkable feat: extending the life of the Voyager 2 probe, now over 21 billion kilometers from Earth. Through a daring maneuver called 'Big Bang,' they freed up vital power to keep its scientific instruments running for at least another year, pushing the limits of deep-space exploration.

A Feat of Engineering 21 Billion Kilometers Away

NASA has achieved an extraordinary milestone in space exploration history. According to reports from specialized media on August 7, 2026, engineers at the Jet Propulsion Laboratory (JPL) successfully extended the operational life of the legendary Voyager 2 probe, preventing the shutdown of its key scientific instruments.

Launched on August 20, 1977, the spacecraft has been traveling through the cosmos for nearly five decades. The maneuver, dubbed 'Big Bang', involved simultaneously turning off certain high-power electrical devices and replacing them with more efficient alternatives, while maintaining the spacecraft's internal temperature.

The Challenge of Power in Deep Space

The Voyager probes get their energy from radioisotope thermoelectric generators (RTGs), devices that convert heat from plutonium decay into electricity. Due to the constant depletion of plutonium, both probes lose approximately 4 watts of power each year. Currently, Voyager 2 has about 220 watts of power, well below the original 470 watts.

Voyager 2

Launch: August 20, 1977
Distance from Earth: 21.367 billion km (142.83 AU)
Signal travel time (one-way): 19 hours, 47 minutes
Active instruments: 3 (CRS, MAG, PWS)

Voyager 1

Launch: September 5, 1977
Distance from Earth: 25.559 billion km (170.86 AU)
Signal travel time (one-way): 23 hours, 40 minutes
Active instruments: 2 (MAG, PWS)

What Is Voyager 2 Studying in Interstellar Space?

Voyager 2 is one of the few missions to have crossed the heliopause (in November 2018) and entered interstellar space. Its instruments analyze particles, magnetic fields, and waves coming from regions far beyond the Sun's influence. NASA emphasizes that this information is unique and irreplaceable by any other currently operating instrument.

The Future of the Twin Probes

The success with Voyager 2 leads NASA to plan the same strategy for Voyager 1 in the coming months. According to expert estimates, the end of these missions is projected as follows:

  • 2031: The last scientific instruments on both probes would be shut down.
  • 2036: Telemetry would no longer be received due to the low signal strength.
  • 2040: The spacecraft's hydrazine (attitude control fuel) would be exhausted.

Sources consulted: Infobae, Sondasespaciales, Diario Cronica.