The boundary of a solar system is not defined by planets, but by gravity. Beyond Pluto and the Kuiper Belt lies the Oort ...

Kicking off the year’s cosmic wonders is the moon, drawing the first astronauts to visit in more than 50 years as well as a ...

Before the sun could fully rise and warm the frigid warehouse, the day had already begun for Tampa Bay Solar. Lively Latin ...

Michele Bannister, an astronomer at the University of Canterbury in Christchurch, New Zealand, said the object presents a ...

The sun’s outer atmosphere resembles a pufferfish.

A solar conjunction occurs as Venus' orbit carries it into alignment with the sun and Earth. Venus will align with the sun ...