How were Voyager 1 and 2 able to reach interstellar space?

Astrom explores the technology of the Voyager probes, the first human made object to reach interstellar space.

The Voyager 1 probe is nearly 45 years old and still uses 8 track magnetic tape from the 1970s .

It takes over 21 hours for NASA to send and receive radio signals, with Voyager 1 covering a distance of 23 billion kilometres , versus 20 minutes to send a radio signal to Mars .

Each probe had a computer called the Attitude and Articulation Control Subsystem .

Attitude refers to their orientations with respect to the Earth , without which their high gain antennae would be unable to send or receive signals from NASA 's Deep Space Network .

The fact that the probes have operated so well for 45 years is a testament to their resilience and engineering.

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