Explore Mercury
![](/images/icons/mercury_interior.jpg)
Mercury, the innermost planet of the solar system, is a little bigger than the Earth's Moon. ...
Read more
![](/images/icons/mercury_atmosphere.jpg)
Mercury has very little atmosphere. The planet's small size means that its gravity is too weak ...
Read more
![](/images/icons/mercury_magnetosphere.jpg)
Mercury is the only terrestrial planet other than the Earth that has a significant magnetic ...
Read more
![](/images/icons/mercury_poles.jpg)
If Uranus is the "tilted planet", Mercury might be called the "upright planet". The spin axis ...
Read more
![](/images/icons/mercury_facts.jpg)
All of the relevant information about Mercury collected on one page, including details about size, orbit ...
Read more
![](/images/icons/mercury_myth.jpg)
Here are two stories about Mercury, one of the gods in the Roman pantheon. Mercury was identified ...
Read more
![](/images/icons/mercury_missions.jpg)
A table containing information about the spacecraft that have visited Mercury ...
Read more
![](/images/icons/mercury_images.jpg)
Access wonderful captioned photos and illustrations that will inspire and excite you. ...
Read more
![](/images/icons/mercury_links.jpg)
These are links to other great web sites about Mercury. But beware: you don't want to get ...
Read more
Did you know?
Did you know that most of the
Earth's
clouds
and
weather
are found in
lowest
level of the Earth’s atmosphere?
Did you know that the ancient Greeks revered Gaea as the Earth goddess, and that she was the mother of the Titans and the first humans?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
SlickensidesxSlickensides : Slickensides are polished striated rock surfaces caused by one rock mass moving across another on a fault.
Click on the word to find out!
Research Highlights
In dark, rich soils on every continent, microbes dealing with the effects of climate change aren't accelerating global warming the way scientists had predicted, a study by researchers at the University...
Read more![](/olpa/images/soilfungi_small.jpg)