The James Webb Space Telescope has captured an amazing closeup of the Helix Nebula. "Blistering winds of hot gas from the ...

After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The old star might have destroyed a nearby planet. Dating back to 1980, X-ray ...

When a star like the Sun runs out of fuel, it expands and its outer layers puff off, and then the core of the star shrinks. This phase is known as a “planetary nebula,” and astronomers expect our Sun ...

Astronomers have been recording the signal for more than four decades, but this is the first time they've nabbed its origin. Share on Facebook (opens in a new window) Share on X (opens in a new window ...