What is OPAL?



OPAL (Outer Planet Atmospheres Legacy) is a project to obtain long time baseline observations of the outer planets in order to understand their atmospheric dynamics and evolution as...

Over the years, the Hubble Space Telescope has taken hundreds of images of different kinds of incredible nebulae in our universe.
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A nebula is a giant cloud of dust and gas in space. There are...

What’s so special about our Moon? Join Jim Green, NASA’s chief scientist, for a podcast season that dives into the Moon’s history and mysteries, as well as NASA’s plans to send astronauts there by 2024.

Servicing Mission 3B was actually the fourth visit to Hubble. NASA split the original Servicing Mission 3 into two parts and conducted 3A in December of 1999. During SM3B a new science instrument would...