Even Jupiter gets photobombed. In this image, its moon Ganymede casts a shadow over the giant planet's enormous storm, nicknamed the Great Red Spot. Hubble often observes Jupiter to track changes in its atmosphere, including this long-lasting storm.

There's more to Hubble than its images! Hubble's Space Telescope Imaging Spectrograph and Cosmic Origins Spectrograph were repaired and installed, respectively, 15 years ago. These instruments practice spectroscopy: the science of breaking light down to its component parts. ⬇️

Nothing says #AstronomyDay like a new episode of Hubble's Inside the Image! 🌌 Today, learn more about gravitationally lensed supernova Refsdal. A galaxy cluster’s massive gravitational field amplifies the light from a supernova, coming from behind it!

Dust in detail! 🔎 Hubble's sharp resolution captured this edge-on view of the lenticular galaxy NGC 4753. This #HubbleFriday view reveals complex dust structures, likely caused by a potential merger with a different galaxy about 1.3 billion years ago: go.nasa.gov/4aksZ93

Happy #InternationalDayOfLight! 🌟 Hubble's Advanced Camera for Surveys looks at a lot of light – ultraviolet, visible, and near-infrared! These are just a few of this powerful instrument's incredible views of our universe: go.nasa.gov/3K6Lgf6