A year after discovering Pluto's fourth moon, "P4," astronomers have learned of a fifth thanks to new images from the Hubble Space Telescope. 

Inventively named "P5," the moon is believed to be between six and 16 miles wide and circles the dwarf planet in a 30,000-mile radius. Hubble captured the images using one of its wide-field cameras earlier this month. 

As you can see from the above image, we're unable to glean a lot about Pluto from Hubble's images. Astronomers are hoping to learn more when NASA's New Horizons space probe reaches it in July, 2015, and takes the first detailed images of the former planet. 

[via Wired