The Earth's appearance has transformed over the course of millions of years. Obviously, for much of that time scientists weren't around to track the Earth's shifting face. But with the advent of the space age in the second half of the 20th century, it became possible to view the planet from afar and get a sweeping perspective. Indeed, an updated NASA gallery published in conjunction with Earth Day 2012 features more than 160 comparison views demonstrating in sharp relief the very real changes that have taken place during the Earth's recent history.
New images reveal planet in a state of flux (photos)
Bridget Carey finds a sweet way to illustrate Samsung's findings on why the Galaxy Note 7 overheated, and what the company is doing to prevent future battery failures.
by Bridget Carey
Samsung says batteries caused Note 7 fires, Hugo Barra heads back to Silicon Valley
After an investigation into the cause of Note 7 phones catching fire, Samsung blames battery defects and hopes a new testing lab will prevent similar problems. Also in today's tech news, former Googler Hugo Barra will to return to Silicon Valley.