Galaxy clusters are home to many giant elliptical galaxies that have completed their growth and are not forming stars.

By reconstructing stellar orbits using real Milky Way stars with accurately determined parameters, the team quantified the galaxy's mass-weighted chemical abundances and age structure. This ...

It proved the Andromeda Nebula is immensely distant from Earth, demonstrating that the Milky Way is not the whole universe, ...

Scientists have uncovered the existence of a binary star system close to the black hole near the center of the Milky Way galaxy.

In their study published Thursday in the journal Science, they showed that by measuring the distance between classical Cepheid variable stars within the galaxy, they could develop a three-dimensional ...

A year of discovery awaits, with missions poised to reveal new insights about our home planet, solar system, galaxy, and ...

New data confirms Hubble's finding and refutes current theories of planet formation in the universe’s early days. Thanks to ...

Astronomers have made a groundbreaking discovery: a binary star orbiting perilously close to the supermassive black hole at the center of our galaxy, Sagittarius A*. This stellar pair defies ...