Mass extinctions and the marine record

User rating: 3.5 / 5 after 13 vote(s)

Mass extinctions have long captured the imagination of scientists and non-scientists alike. A new volume published by the Geological Society of America includes some of the best evidence of the relationship between major environmental changes and changes in life on the planet.


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All News summaries for July 30, 2007

Astronauts face hardest spacewalk to finish repair

6 hours ago | User rating: not rated yet
(AP) -- Astronauts up on the international space station faced the longest and hardest spacewalk of their mission Saturday, a seven-hour-plus excursion to wrap up repair work on a gummed-up joint.

NASA's space water recycling system has hiccups

Nov 21, 2008 | User rating: not rated yet
(AP) -- NASA's revolutionary new space water recycling system is having serious hiccups. The $154 million device for turning astronauts' urine and sweat into drinking water aboard the international space ...

NASA scales back flagship Mars mission

Nov 21, 2008 | User rating: not rated yet
(AP) -- NASA is scrapping a controversial piece of hardware from its next-generation Mars rover that would have allowed the spacecraft to store rock fragments in a mini-basket for a future mission.

Would-be Japanese space tourist wants $21M back

Nov 21, 2008 | User rating: not rated yet
(AP) -- Japanese millionaire Daisuke Enomoto had planned to dress up as his favorite cartoon character in outer space and spent $21 million to make it happen. Now he claims the company that was supposed make his dream come ...

Iconic rings and flares of galaxies created by violent, intergalactic collisions

Nov 21, 2008 | User rating: not rated yet
The bright pinwheels and broad star sweeps iconic of disk galaxies such as the Milky Way might all be the shrapnel from massive, violent collisions with other galaxies and galaxy-size chunks of dark matter, according to a ...
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