Pluto receives enough sunlight to be about as bright as midday on Earth during specific times, despite being a dwarf planet 7 ...

Pluto is the most well-known dwarf planet. NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute . Out beyond Neptune, past Pluto, through the chaos of the Kuiper ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Journey beyond Neptune to uncover the frozen, mysterious worlds that challenge everything we thought we knew about the solar ...

Pluto is so far away from Earth that everything we know about it can be written down on a couple of 3 x 5 inch index cards. But Pluto will come into clearer focus in a few years' time, though, as NASA ...

"This mission should be able to image the whole of Pluto. It should be phenomenal." When NASA's New Horizons spacecraft sped by Pluto in 2015, it revealed an incredible world of ice and haze carved by ...

Scientists have detected methane gas glowing faintly above Makemake, an icy dwarf planet smaller and farther than Pluto in space. Until now, Pluto was the only object that far out in the solar system ...