NASA's New Horizons will investigate Uranus from the rear (Neptune, too). Here's how you can help

Rendering of NASA's New Horizons spacecraft.

NASA's New Horizons spacecraft, which visited Pluto in 2015, is embarking on an observing campaign of the ice giant planets Uranus and Neptune – and scientists need your help.

Although New Horizons is now far beyond both Uranus and Neptune, throughout September it will be turning its Multispectral Visible Imaging Camera (MVIC) back to look at both planets from a vantage point more than 5 billion miles from Earth. In doing so, it will be seeing these worlds from the opposite direction to how we see them from Earth.