A seasonal black moon, to appear on August 22 or 23, is the third of four new moons within an astronomical season ...

The moon's glow meets a multicolored aurora in a new astronaut image from space. International Space Station (ISS) and NASA ...

A Blue Moon can be defined as a monthly one (the second full Moon in a calendar month) or a seasonal one (the third full Moon in a season). Similarly, you can have a monthly Black Moon, happening ...

On July 5, the moon 's terminator, the line that separates lunar night from day, falls slightly to the west of the great circular plain Sinus Iridum (Latin for the 'Bay of Rainbows') in the ...

Photos of the sun's corona can help scientists study the solar wind — the more than 300,000 tons (272,000 metric tons) of material the sun blasts into space every second at a million mph (1.6 ...

That's because Mars takes 687 Earth days to orbit the sun, and Earth takes 365 days, so Earth passes between Mars and the sun every 789 days. For more sublime space images, check out our Space ...