Prior to 2040, the last planetary quintuplet occurred in the year 1186, and according to Uptain, records show that the close ...

Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

Venus will pass between the Earth and sun during what’s called an inferior conjunction. But don’t plan on seeing the linkup.

“A lot of what we do can be incremental, and it’s sometimes hard to see ... planets orbiting Barnard’s Star do not transit, ...

While Venus passes between the Earth and Sun every 19.5 months, it's only about every eight or so years that the planet becomes visible both after sunset and before sunrise, according to the ...

The moon passes before the sun, blocking the star and casting a shadow on our planet. If the weather permits, people in the shadow's path can see the eclipse. The sun-moon-Earth alignment isn't ...

If you’re an early riser, Saturday will give you a chance to see a partial solar eclipse just as the sun is coming up.