A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Feb. 17's annular solar eclipse occurred as the lunar disk slipped between the sun and Earth during its new moon phase. The alignment occurred as the moon travelled through a distant point in its ...

Today (Feb. 17), an annular solar eclipse will commence its journey across a remote region of Antarctica where it will be visible to more penguins than people. The partial solar eclipse portion of the ...