Pluto will reach its closest approach to Earth and align opposite the Sun on July 25, appearing slightly brighter (magnitude ...

By imagining Earth at the center of a celestial sphere, he used a coordinate system similar to latitude and longitude, which had recently been devised, to measure the precise positions of the stars.

Moving from the outer layer inward, the first layer is the corona — the outermost part of the sun’s atmosphere that is actually hotter than the sun’s surface. This is followed by the chromosphere — a ...

Solstice 2025 is on June 21st, 2025. Learn what it is, its meaning, and how Earth's tilt creates the longest day (Northern ...

Master gardener Margaret Rose Realy offers a deeply Catholic guide to transforming any outdoor space into a place of prayer and beauty.

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.

The first videos released by the Vera C. Rubin Observatory reveal thousands of drifting asteroids, hundreds of thousands of ...

NEW YORK (AP) — Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday.

Scientists have uncovered ancient secrets buried deep beneath the surface of the moon, thanks to China’s Chang’e-4 mission.

An accidental discovery in an astronomy show offers researchers a new clue about the mysterious Oort Cloud, a large expanse of icy bodies revolving around the sun.