Its proximity to Earth – about 50 to 70 million kilometers from mid to late April – means we catch more of its light, so it ...

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.

On April 7th, Mercury, our mischievous planet of the mind and mouth, ends its retrograde. Mercury will station direct at 7:07 ...

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 ...

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

Venus, Saturn, and Mercury are full of surprises this month, and they have one more awe-striking display in store. Before ...

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

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