Because the Moon is over a quarter the diameter of Earth, the Earth-Moon system is often cited as the pairing in our Solar ...

In a event that won't be seen again until the year 2040, seven planets will align in the sky at the same time on 28 February ...

Mars will appear to make an ultraclose approach to the moon on Sunday, after Jupiter had a turn earlier this week. Here's how ...

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

If planets had social media accounts, the solar system would showcase a frenzy of unique personalities. Mercury tweets at ...

All planets to align at the same time in rare planetary parade - For the last time until 2040, seven planets will appear together in the night sky ...

If the thought of any planet going retrograde causes you to steel yourself for a surge of frustration, crossed wires and challenges galore, you're far from alone. But one of the coolest things about ...

To see the whole shebang, you’ll need a pretty unobstructed view of the horizon in an area with relatively little light ...

Three months after its launch from NASA's Kennedy Space Center in Florida, the agency's Europa Clipper has another 1.6 ...

Californians watching the sky in February have the chance to view a parade of planets and a snow moon. The planetary alignment that began in January will continue into February, according to ...

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern ...

Just as Sun, Moon, Mercury, Venus and Mars move through the signs of the zodiac as they orbit, so do the outer planets.