News tagged with earth

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Mars, too, has macroweather

Weather, which changes day-to-day due to constant fluctuations in the atmosphere, and climate, which varies over decades, are familiar. More recently, a third regime, called "macroweather," has been used ...

Nov 13, 2014
4.3 / 5 (7) 0

New study finds oceans arrived early to Earth

Earth is known as the Blue Planet because of its oceans, which cover more than 70 percent of the planet's surface and are home to the world's greatest diversity of life. While water is essential for life ...

Oct 30, 2014
4.5 / 5 (27) 25

Talking to aliens

What do you say to a space alien? This question might not be the foremost puzzle in your life, but it was the subject of a lively two-day conference at California's SETI Institute this week.

Nov 17, 2014
4 / 5 (10) 7

Life's history in iron

A new study examines how Earth's oldest iron formations could have been formed before oxygenic photosynthesis played a role in oxidizing iron.

Nov 07, 2014
4.9 / 5 (7) 4