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Posts by
Deborah Byrd
Antarctica has its first complete ice flow map
The animation illustrates ice flowing thousands of miles from the heart of the continent seaward on Antarctica to its coastlines. The map shows more detail.
August 21, 2011
Earth’s moon might be younger than we thought
Earth's moon was thought to be 4.57 billion years old, but a detailed analysis of lunar rock indicates it might be as much as 200 million years younger.
August 18, 2011
NASA confirms Earth isn’t expanding
The average change in Earth's radius is 0.004 inches per year, or about the thickness of a human hair, a rate considered statistically insignificant.
August 16, 2011
Fukushima reactor radiation release calculated
Measuring radioactive sulfur in California let researchers calculate how much radiation released from Fukushima reactors. Read more.
August 15, 2011
X-class solar flare August 9. Aurora alert in coming days
The sun emitted an X6.9 or X7 flare on August 9, 2011. X-flares are the biggest flares. Some radio blackouts might occur. Aurora alert in the next few days.
August 9, 2011
Mars’ north pole at northern summer solstice
What's it like at the north pole of Mars, at the time of the northern summer solstice? Check out this image from ESA's Mars Express spacecraft.
August 7, 2011
Alfred McEwen: Possibility of flowing salty water on Mars
Thousands of dark, finger-like features extend down slopes during late spring and summer on Mars. Alfred McEwen said it might be salty water flowing today.
August 4, 2011
Humanity winning on global challenges, yet world is unstable
The 2011 State of the Future Report says the world is in a race between an improving human condition - and bigger and more complex global problems.
August 3, 2011
World’s biggest fungus found under tree in China
"We did not know the fungus can grow so huge," said Professor Yu-Cheng Dai, who made the discovery. "A small piece of the fruiting body is almost like my size."
August 2, 2011
In 2011, 7 billion humans and counting
Expect 7 billion humans by October 31, according to experts at the Population Reference Bureau, which released its 2011 World Population Data Sheet on July 27.
July 31, 2011
