"He explained what causes a "rainbow cloud" phenomenon: They occur when the sun's rays interact with ice crystals or water droplets in the high-altitude clouds.That causes the light to diffract ...

On April 18, 2025, the WFI-2 instrument (which captured its first light on April 14) took images through all three of its polarizers in succession for the first time to create this view.

For those who have followed the saga of the congressional-Republican effort to implement Donald Trump’s second-term legislative agenda via a giant budget-reconciliation bill that has been in the ...