Measuring distances across the universe is much more challenging than measuring distances on Earth. Is a brighter star closer ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

The brilliant planet brightens from magnitude –4.4 to magnitude –4.7 during January, far surpassing any other planet or star ... that extended to the far southern sky? To address this question ...

Astronomers measure a star’s brightness using the apparent magnitude system, where lower values indicate brighter stars.

the part of the pole extending from the Southern Hemisphere points toward our star. During the Summer Solstice in the Northern Hemisphere, the pole that extends from this half of the planet is ...

The brilliant planet brightens from magnitude –4.4 to magnitude –4.7 during January, far surpassing any other planet or star ... that extended to the far southern sky? To address this question ...