Credit: NASA/ESA, L. Sromovsky, and P. Fry (University of Wisconsin-Madison)

Springtime is blooming on Neptune! This might sound like an oxymoron because Neptune is the farthest and coldest of the major planets. But observations by NASA's Hubble Space Telescope reveal an increase in Neptune's brightness in the southern hemisphere. Astronomers consider this increase a harbinger of seasonal change.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/opo0317c/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License