High above the Sun’s blazing equator lie its mysterious poles, the birthplace of fast solar winds and the heart of its magnetic heartbeat. For decades, scientists have struggled to see these regions, ...

I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some researchers suggest it could even be alien-made, drawing comparisons to probes ...

The Milky Way ripples like a vast cosmic wave. Gaia’s precise measurements reveal a colossal motion sweeping through the galaxy’s disc, an echo of something mysterious in our galaxy’s ancient past.

The race is on to harness the near-infinite power of nuclear fusion—by building a star on Earth. And scientists are closer than you might think.

WASHINGTON — President Donald Trump announced U.S. Space Command will officially establish its headquarters in Huntsville, Alabama, a move that reverses a decision made by his predecessor, Joe Biden, ...