Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This article is more than 4 years old. This global color ...

Given the long development time for some missions and the decade-plus journey to reach the last planet in the solar system, the sooner scientists and engineers start working toward the mission, the ...

A celestial body can be weird because of how it moves. Or how it looks. Or because it embodies mysteries no one can solve. Neptune’s moon Triton possesses all three qualities. Triton is the most ...

Neptune's large moon Triton may have abandoned an earlier partner to arrive in its unusual orbit around Neptune. Triton is unique among all the large moons in the solar system because it orbits ...

NASA’s Voyager 2 spacecraft gave humanity its first close-up glimpse of Neptune and its moon Triton in the summer of 1989. Like an old film, Voyager’s historic footage of Triton has been restored and ...

Call it a cosmic coincidence. On its quest to reach Pluto, NASA’s New Horizons spacecraft is crossing Neptune’s orbit today, Aug. 25 -- the same day that the Voyager 2 spacecraft visited the giant icy ...

Triton, unique among all the large moons in the solar system because it orbits Neptune in a direction opposite to the planet's rotation, may have abandoned an earlier partner to arrive in its unusual ...

Neptune’s large moon Triton may have abandoned an earlier partner to arrive in its unusual orbit around Neptune. Triton is unique among all the large moons in the solar system because it orbits ...