If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Four of Earth’s neighbors are about to appear in a planetary alignment. Those four planets — Mercury, Venus, Neptune and ...

Jupiter begins to relinquish its dominance of the evening sky while Venus commands ... The other evening planet, Mars, continues to fade as it moves away from Earth. Early in the month, it is ...

Sponsor Message In February, stargazers enjoyed a rare occurrence: All seven of Earth's planetary siblings dotted the night sky at once. And later this year in August, four planets — Mercury ...

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

"A satellite on a polar orbit around the Earth is one that would pass over the north ... though how bright they would appear in the sky also depends on how close the planet is to them," Baycroft said.

The second-closest planet to Earth is about to pass through a beehive in the sky — a beehive of stars. Starting Thursday, Mars should be seen passing through the Beehive star cluster ...

Hello, Eos! Recently discovered molecular cloud is believed to be one of the largest structures in the sky and among the ...

Both outlets suggest that the moon may be illuminated by Earthshine, where the sunlight reflected off of the Earth ... sky.

Head’s up, skywatchers, as April closes out, the night sky will include a crescent moon alignment this week on Friday, April 25. The grouping of planets will include bright Venus, Saturn, and ...

What's happening in the skies over North Texas this month? May holds some spectacular sights in the night and morning sky.