Skywatchers were left surprised, puzzled and awestruck by a mysterious streak of light slicing through the night sky.

Lights at night disrupt plant growth and can cause migrating birds to wander off their path into dangerous urban environments ...

The bright constellations of winter have departed in the west, while the stars of spring are climbing the eastern and ...

Astronomers have developed a computer simulation to explore, in unprecedented detail, magnetism and turbulence in the ...