In 2007, researchers at the University of CaliforniaâDavis determined that our Solar System was fully formed at 4.568 billion years ago. They did this by determining the age of stony materials from the asteroid belt.
When to see a doctor. See your doctor immediately if you experience the signs and symptoms of migraine with aura, such as temporary vision loss or floating spots or zigzag lines in your field of vision. Your doctor will need to rule out more-serious conditions, such as a stroke or retinal tear.
How to Get Rid of Frown Lines Around the Mouth. Frown lines are common around the eyes, but also happen around the mouth. They come from the pursing of lips when frowning, as well as smoking. As we age, the proteins in our skin, collagen and elastin, decrease. This causes frown lines to stay long after we stop frowning, but there are products and steps to take to help them go away.