Over the last ten years, OPAL has observed Uranus' northern hemisphere, which has faced the inner solar system for the ...

But Uranus and Neptune don’t. Instead ... considered “ice giants” rather than gas giants because beneath their atmosphere is an icy mantle, composed of compressed water, methane, and ...

The outermost layers of Uranus and Neptune consist mainly of clouds of ... However, exactly what the rest of the atmosphere of these planets is made of, and how they are structured, has remained ...

Planet TOI-3261 b is about twice as dense as Neptune, indicating that the lighter parts of its atmosphere have been stripped away over time, leaving only the heavier components. This shows that ...

Since the start of the program, Hubble has watched several swirling storms drift through the atmosphere of Neptune, a planet with a whopping 40-year seasons. Witnessing the demise of one stormy spot, ...

Winds on Neptune churn up methane gas from the deep, and they glom onto aerosol particles in the atmosphere, causing haze to ...

A storm like a giant dark splotch the size of Earth's Atlantic Ocean was spotted in the atmosphere of Neptune in 2018, which Hubble followed until the storm's demise toward the planet's equator.