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

Astrologer Lisa Stardust explains what the retrograde shadow period is and how it will affect each zodiac sign.

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University of Virginia. He has written four books on astronomy and consulted on space ...

On the morning of April 17, Mercury, Venus, Neptune and Saturn will take part in a planetary alignment, also known as a planetary parade, according to the website StarWalk. These four planets are ...

"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...

Turns out, it's as tough to drop inward into the inner solar system, as it is to head outward. The problem stems from losing ...

Also in the morning sky is little Mercury, but traditionally ... Conversely, when Venus is near its closest point to the Earth, its disk appears six times larger, but it appears as only a hairline ...

Future missions to Venus could also supply additional data on the density and temperature of the planet's crust, which could ...

It was a beautiful summer evening in Western Colorado. The Sun had just set and our bright sister planet was just starting to ...

Here’s what to do (or not to do), and the crystals you can work with if you’re into that It’s been a few months since Mercury was last in retrograde, and honestly, I’ve forgotten about it.