Gravitational lenses have been used previously to resolve individual stars in the distant Universe. Using the microlensing of ...

Researchers have unveiled a cosmic cycle where carbon, created in the explosions of stars, travels through space via a ...

Galaxies are not islands in the cosmos. While globally the universe expands—driven by the mysterious "dark energy"—locally, ...

The Great Filter theory suggests that our lack of contact with extraterrestrial civilizations may arise from either their ...

Taking advantage of a cosmic 'double lens,' astronomers resolved more than 40 individual stars in a galaxy so far away its light dates back to when the universe was only half its present age.

The galaxy Dragon Arc was observed along the line of sight to the galaxy cluster Abell 370, which acts as a cosmic magnifying glass.

Observations with the South Pole Telescope have revealed an independent addition to the biggest problem in cosmology.

Physicists have proposed a solution to a long-standing puzzle surrounding the GD-1 stellar stream, one of the most ...