NASA has captured a stunning view of the birth of a star, revealing details never seen before. This breakthrough offers a ...

In a new book release, two scientists combine forces to explain the discoveries, developments and theories made in the realm ...

"For the first time, we could trace the boundary between the gas residing in galaxies and the material contained within the cosmic web through direct measurements." Astronomers have imaged a ...

In the century since Hubble’s pioneering work, astronomers like me have learned that the universe is vast and contains trillions of galaxies. In 1610, astronomer Galileo Galilei used the newly ...

Within galaxies, as stars were being born ... Or it will be locked up in brown dwarfs and planets that never triggered nuclear fusion, or in stars that withered into white dwarfs.

In the century since Hubble’s pioneering work, astronomers like me have learned that the universe is vast and contains trillions of galaxies. In 1610, astronomer Galileo Galilei used the newly ...

Galaxies are huge collections of billions of ... enough for the hydrogen nuclei to fuse together to make helium. The fusion process releases energy, which keeps the core of the star hot.

Fusion energy research is being pursued around ... Astronomers have spotted a pair of galaxies in the act of merging 12.8 billion years ago. The characteristics of these galaxies indicate that ...