The Planetary Data System (PDS), which archives and distributes data from all of NASA’s planetary missions, today released data collected during MESSENGER’s thirteenth through eighteenth month in ...

'These processes are a universal mechanism for aurora generation.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The way in which the radiant ...

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 momentum from a launch starting point on Earth. It can take missions ...

This is the story of our cosmic neighborhood's front row. We explore the four rocky planets forged in the sun's heat: ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Mercury retrograde is happening again. If you believe ...

Mercury is almost in retrograde. You may have heard people lamenting the astrological phenomenon, blaming their various woes on the planet's movement. But what does it mean for Mercury to be in ...

On January 3, 2023, Solar Orbiter witnessed a transit of Mercury. The smallest and innermost planet of our solar system was in front of the Sun from the vantage point of the space mission, which is a ...

Mercury, the innermost planet of our Solar System, exhibits a uniquely dynamic magnetosphere that, despite its relatively weak intrinsic magnetic field, undergoes rapid and complex interactions with ...

What’s the closest planet to Earth? Common sense would say the answer is either Mars or Venus, our next-door neighbors. Of the two, Venus comes closer to the Earth than any other planet, and its orbit ...