Solar System Chatter

Hubble’s Headlights for Voyager

NASA, ESA, and G. Bacon (STScI)
NASA, ESA, and G. Bacon (STScI)
The two NASA Voyager spacecraft left the solar system a few years ago as the first human-made objects to travel through interstellar space. The instruments are still collecting data 39 years after launch, and now they’re getting an assist from Hubble Space Telescope. The Earth-orbiting telescope is looking closely at the interstellar material the far-flung spacecraft are moving through, which is being combined with the Voyagers’ up-close measurements. The data is helping astronomers understand how the “complex interstellar ecology” is changing and how the sun continues to affect space farther and farther away.

Heather Goss is the Departments Editor at Air & Space.

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Hubble, Voyager