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The largest volcano known is on Mars: Olympus Mons, 370 miles wide and 79,000 feet high, is almost three times higher than Mount Everest.  More

Pregnancy Week 17

The seventeenth week marks the beginning of fat stores under your baby's skin.

The fat will keep your baby warm after birth.

By the end of this week, your baby will be about 5 inches or 13 cm in length from crown to rump and weigh almost 5 ounces or 142 grams.

Second trimester symptoms are still common at this time.