In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position ... away a galaxy was, the faster it was moving away from Earth.

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society ...

This spacecraft, dedicated to mapping the Milky Way, has exhausted its propellant ... The Lagrange L2 point is a position in space where the gravitational forces of the Earth and the Sun balance, ...

The Hubble Space Telescope has used its sensitive instruments to create a mosaic image containing 2.5 billion of the Milky Way's closest neighbor.

Crucial to all life on Earth, the 15th element of phosphorus remains a real puzzle for astronomers. Specialized space telescopes are needed to shed light on the issue.

Observations show Andromeda has a more active star formation history than the Milky Way, potentially ... stars in the Andromeda galaxy that are brighter than Earth's sun. But astronomers estimate ...

The Hubble Space Telescope completes a high-resolution portrait of our galaxy's gorgeous neighbor, which will help scientists better understand our Milky Way.

Life on Earth is a constantly debated issue. Physicist Crespo, through his Quantum Fracture account, recently explained that the Sun could change galaxies: "Andromeda, the largest galaxy in our ...

Gaia was launched on December 19, 2013, and began scanning the stars in July 2014. It mapped over two billion stars, ...