Evidence suggests ancient civilizations, including the Greeks, may have had early optical knowledge and devices like ...

October belongs to Pegasus and the water constellations, which float through the southern sky after nightfall. Reigning supreme high in the south are the Great Square of Pegasus and, stretching from ...

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...

Watch a bright Moon dominate the sky, trace the Winter Hexagon, and continue enjoying the evening parade of planets in the ...

NASA officials said what Juno spotted was 'the most powerful volcanic event ever recorded on the most volcanic world in our ...

Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

The eruption released energy six times greater than all Earth's power plants combined, exceeding 80,000 trillion watts.

I hope you got a chance to see the moon nuzzled up to Venus on Feb. 1, and perhaps even checked out the pair through binoculars. Now, with the moon gone ...

On Feb. 24, from west to east, you can see Mercury, Saturn, Neptune, Venus, Uranus, Jupiter and Mars, all spanning 117.5°, plus Earth under your feet—all eight known planets of our solar system!

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...