A very rare treat is about to grace Earth's night skies.

Stargazers in parts of the U.S. have a fleeting opportunity this month to catch a rare celestial phenomena—a "parade" of seven planets—for the last time until the year 2036.

Do you know your eclipses? From "blood moon" and "ring of fire" eclipses to total eclipses and deep or shallow partials, ...

And in February, 2025, Mercury will join the fun, with all seven of our planetary neighbors visible from Earth. So what does such a planetary alignment mean for science? Well, truthfully ...

Earth is a special case; its inclination is 0° because it defines the solar system’s plane. This means the planets, like the moon, slowly weave above and below the ecliptic, making a perfect ...