A long exposure was used to capture this image of the moon rising behind three ... Arguably, the most famous star in the ...

This isotope is found at a ratio of about one per 2,500 helium-4 ions, the latter being the common version of helium.

Venus dominates as the brilliant “Morning Star” in the east-southeast before dawn; the Eta Aquariid meteor shower takes place ...

The National Science Foundation’s Daniel K. Inouye telescope debuted a close-up of the sun captured by its new, ...

What is the bright star in the east right now? Venus, the bright "Morning Star," shines brilliantly in the pre-dawn sky this ...

To spot the celestial 'smiley face,' skywatchers in the U.S. will need a clear view of the eastern horizon in the hour ...

Image caption, The part of the Earth facing the Sun is lit up ... These are called the Moon's phases. The Moon does not make its own light like a star. The Moon appears bright because it reflects ...

Coming up this Saturday night, May 3, the fat crescent Moon will hover next to the famous blue star Regulus. As the brightest luminary in the entire zodiac and the main star of Leo the Lion, the ...