The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward ...

The sun is reaching a solar maximum. Here's what that could mean for Iowa and our chances to see the aurora borealis, known ...

Mercury, the closest planet to the sun, is the only one missing from the night sky. It’s currently in the morning sky, though lost in the sun's glare. Earlier this month, the BepiColumbo ...

Mercury — passes superior conjunction with the sun on Feb. 9 and enters the evening sky. By Feb. 19, only 9 degrees from the sun, Mercury can be seen at magnitude -1.2 with binoculars 20 minutes ...

That's 0.6 astronomical units (Earth-sun distances) from Earth. It may be one of the best objects in the night sky, but Mars is briefly outshone by about 25-to-1 by Venus, which is shining at -4.3 ...

This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great planetary alignment. The eight planets in our solar system orbit the sun in ...

Sun dogs. You may have noticed these as a tiny rainbow spot in the sky. I get questions about these all the time. For Sun dogs to appear, you need sunshine and ice crystals suspended in the ...

Read more: Full Moons Explained, From Blue Moons to Supermoons to Lunar Phases You won't have to wait long for all six planets to be in the sky. They'll be there as soon as the sun sets.