Saturn and Neptune reach opposition, looking their best for the year. Jupiter and Venus shine bright before dawn, as does the zodiacal light.

In this quiz, you’ll test your knowledge of Neptune's features, moons, and the science that keeps astronomers fascinated.

Triton returns to the edge of the solar system in search of answers—where did Neptune’s moons really come from? What secrets is Neptune hiding? A cosmic story of capture, identity, and moon ...

From Jupiter’s swirling storms to Neptune’s icy depths, planets across our solar system are orbited by a fascinating cast of ...

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 ...

Since 2000, 47 new moons of Jupiter and 43 of Saturn have been discovered. This large clan of moons is a menagerie of quirks. Some like Triton, one of Neptune's moons, spin opposite to the ...