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Hubble Provides Interstellar Road Map for Voyagers' Galactic Trek

In 1977, NASA's Voyager 1 and 2 spacecraft began their pioneering journey across the solar system to visit the giant outer planets. Now, the Voyagers are hurtling through unexplored territory on their road trip beyond our solar system. Along the way, they are measuring the interstellar medium, the mysterious environment between stars that is filled with the debris from long-dead stars. NASA's Hubble Space Telescope is providing the road map, by measuring the material along the probes' trajectories as they move through space. Hubble finds a rich, complex interstellar ecology, containing multiple clouds of hydrogen, laced with other elements. Hubble data, combined with the Voyagers, have also provided new insights into how our sun travels through interstellar space.
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TheVoyager 2spacecraft made its closest approach to Neptune on the 25th August, 1989

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Voyager 2 spacecraft makes its closest approach to Saturn on the 25th August, 1981

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Voyager at 35

Thirty-five years ago today, NASA's Voyager 2 spacecraft, the first Voyager spacecraft to launch, departed on a journey that would make it the only spacecraft to visit Uranus and Neptune and the longest-operating NASA spacecraft ever. Voyager 2 and its twin, Voyager 1, that launched 16 days later on Sept. 5, 1977, are still going strong, hurtling away from our sun. Mission managers are eagerly anticipating the day when they break on through to the other side - the space between stars.
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35th Anniversary of the launch of Voyager 2in1977.

Voyager 2was launched on August 20, 1977 to explore the planets of the outer solar system and the interplanetary environment.
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Uranus - Space sounds



Voyager 2 passed within 81,500 kilometres of the cloud tops of Uranus on January 24, 1986.
Voyager 2 also discovered the moons Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Perdita and Puck; studied the planet's unique atmosphere, caused by its axial tilt of 97.8; and examined the Uranian ring system.

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Voyager 2 Completes Switch to Backup Thruster Set

NASA's Voyager 2 has successfully switched to the backup set of thrusters that controls the roll of the spacecraft. Deep Space Network personnel sent commands to the spacecraft to make the change on Nov. 4 and received confirmation today that the switch has been made.
The change allows engineers to reduce the amount of power that the 34-year-old spacecraft needs to operate by turning off the heater that keeps the fuel to the primary thrusters warm. Although the rate of energy generated by Voyager 2's nuclear power source continues to decline, by reducing its power requirements, engineers expect the spacecraft can continue to operate for another decade.
The switch also allows the spacecraft to use previously unused thrusters as it continues its journey toward interstellar space, beyond our solar system.

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Voyager 2 to Switch to Backup Thruster Set

NASA's Deep Space Network personnel sent commands to the Voyager 2 spacecraft Nov. 4 to switch to the backup set of thrusters that controls the roll of the spacecraft. Confirmation was received today that the spacecraft accepted the commands. The change will allow the 34-year-old spacecraft to reduce the amount of power it requires to operate and use previously unused thrusters as it continues its journey toward interstellar space, beyond our solar system.
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Encounter with Saturn

The closest approach to Saturn occurred on August 26, 1981.
While passing behind Saturn (as viewed from Earth), Voyager 2 probed Saturn's upper atmosphere with its radio link to gather information on atmospheric temperature and density profiles.

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The Voyager 2 spacecraft made its closest approach to Neptune in 1989



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Voyager 2 was launched on August 20, 1977 to explore the planets of the outer solar system and the interplanetary environment.
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