​PROPERTIES OF EARTH:

​PROPERTIES OF MARS: 

---

        MOTION OF EARTH & MARS:

---

           ROTATION OF EARTH & MARS:

Rotation of Earth

Rotation of Mars

---

 HOW DOES THE SUN HELP & HARM LIFE:

---

OTHER RESOURCES ABOUT MARS & EARTH

MORE MARS FACTS

CAN WE SURVIVE?

LIFE ON MARS

ATMOSHPERE ON EARTH

SURVIVE ON MARS!

Mars Topography

Goldilocks