How far away it is: 93 million miles (150 million km) ...

What causes the sun's high activity? The sun is a massive ball of electrically charged hot gas, which produces a powerful magnetic field, according to NASA. The sun undergoes an 11-year "solar ...

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System – only the third ...

NASA's new "CODEX" telescope has snapped its first photos of the sun's outer atmosphere, revealing previously imperceptible ...

Third-ever confirmed visitor, dubbed 3I/Atlas and hurtling at 60 kilometers per second after likely being formed in distant ...

Recent observations have revealed carbon monoxide venting from the largest comet ever seen, providing clues about its origins ...

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through the solar system — only the ...

Researchers from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences and Columbia University ...