"This work shows without a doubt that Parker Solar Probe is diving deep with every orbit into the region where the solar wind is born." ...

The arrival of a visitor from beyond our solar system is a cosmic event of staggering rarity, yet it has just happened for only the third time in human history. Imagine a silent, billion-year journey ...

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter ...

A rocky exoplanet outside the Earth's solar system may have an atmosphere, according to new evidence gathered by NASA ...

Some wildfires are so intense, they create their own weather—thunderstorms driven by heat that hurtle smoke as high as 10 ...

Here's how an atmospheric river, particularly the powerful Pineapple Express, works and why it can carry so much ...