Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

Neptune is called an “ice giant” because it’s mostly made of a thick, slushy mix of water, methane, and ammonia, which ...

If you missed my first 10 cool things about the Moon, you can read them here. Now you're ready for 10 more. #11. The Moon's ...

The solar wind pushes some of the gas and dust away from the comet, forming those beautiful tails we see. A comet actually ...

Saturn will rise above the eastern horizon beneath the stars of the constellation Pisces shortly before midnight for viewers ...

Chinese scientists propose 2033 Neptune orbiter mission Scientists are proposing China’s first ice giant mission, aiming to ...

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

The distant planet Neptune stands still against the background stars of Pisces in the early-morning sky, still visible close ...

The moon will rise alongside the giant planets Saturn and dimmer Neptune above the eastern horizon in the predawn hours on June 19.

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...