The James Webb Space Telescope has captured a fleeting, spectral flash from the Milky Way’s central black hole, a signal that ...

Interstellar object 3I/ATLAS was just hit by a solar blast, putting the "alien craft" theory to the test as scientists await new data from the collision.

In a scientific first, NASA has assembled a full-spectrum view of interstellar comet 3I/ATLAS—a relic from beyond our solar ...

Coiled and snakelike, a set of four identical shells surrounds a violent stellar dance 8,000 light-years from Earth.

A spiral galaxy, shaped much like our Milky Way, has been found in an era when astronomers believed such well-formed galaxies ...

The JWST has spotted Alaknanda, a massive, well-formed grand-design spiral galaxy that existed just 1.5 billion years after ...

Jupiter's moon Io stands alone among the solar system's moons. It has more than 400 active volcanoes, and its surface is home to more than 100 massive volcanic mountains, some of which are taller than ...

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