This week: A special Earth Day planet pics looks at the world's largest desert, a massive iceberg on the move and a deep ocean dive where you can ride along.
NASA's Aqua satellite was in a unique position to capture spring's arrival on the East Coast.
Cherry blossoms bloom in South Korea, Cairo is captured at night by the space station and mysterious fairy circles come into focus.
We spot the Northern lights from above, the largest salt flats on Earth and take a surreal inside look at fruits and veggies.
Photographer Radu Zaciu creates surreal still life images by placing light bulbs inside fruits and vegetables.
As spring kicks in, our planet pics take a decidedly green hue, from the northern lights, to a verdant Alaskan park and a river that turns color in a flash.
The Lunar Reconnaissance Orbiter provides a view of Earth from the dark side of the moon and a South American country names half of its area a conservation corridor. Plus: Two hikers brave frozen Lake Erie.
A massive mitten is spotted in the Arctic, a winter storm covers much of the United States and a stunning ice cave in Alaska is captured just before it disappeared.
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