Sunlight on Earth changes over decades, affecting climate, agriculture, and energy production, including solar power.

In a breakthrough that could reshape future lunar exploration, NASA researchers have confirmed that the solar wind—a stream ...

For decades, scientists have wondered how the moon can have water. It’s dry, airless, and lacks an atmosphere, so the ...

A team of researchers led by Cornell University has developed a new device that simultaneously generates clean hydrogen fuel ...

Normally, titanium dioxide can clean water and air by using sunlight to trigger chemical reactions, a process called photocatalysis. But there’s a catch — it only works with UV light, which is just a ...