The Voyager spacecraft, specifically Voyager 1 and Voyager 2, were launched by NASA in 1977 with the primary mission of exploring the outer planets of our solar system. Over the years, both spacecraft have continued their journey into interstellar space. While the Voyagers have provided invaluable data and images from their distant encounters, they are now too far away to be observed with a telescope from Earth.
As of June 2023, Voyager 1 is the farthest human-made object from Earth, located over 23 billion kilometers (14 billion miles) away. Voyager 2 is also quite distant, currently around 18 billion kilometers (11 billion miles) away. At such immense distances, the Voyagers are far beyond the capabilities of even the most powerful telescopes on Earth to resolve or detect.
To put it into perspective, the Hubble Space Telescope, which has captured breathtaking images of distant galaxies and nebulae, wouldn't be able to resolve the Voyagers as more than just faint points of light, if at all. The Voyagers' small size and extreme distance make them virtually impossible to observe with current technology.