Originally published on Thu February 6, 2014 6:42 pm
Take a close look at the stunning image above showing a newly formed impact crater on Mars: The blue streaks of material, known as ejecta, radiate 9 miles from the 100-foot crater, according to NASA.
The picture was taken from orbit by the Mars Reconnaissance Orbiter on Nov. 19. The same area was imaged by the MRO's Context Camera in July 2010 and again in May 2012 — with no crater in the first and a telltale surface scar in the second.
They were some of the largest, hairiest animals ever to walk the Earth, but new research shows a big part of the woolly mammoth's diet was made up of tiny flowers.
The work is based on DNA analysis of frozen arctic soil and mammoth poop. It suggests that these early vegans depended on the flowers as a vital source of protein. And when the flowers disappeared after the last ice age, so too did the mammoths that ate them.
This is ALL THINGS CONSIDERED from NPR News. I'm Melissa Block.
AUDIE CORNISH, HOST:
And I'm Audie Cornish. Now, the strange story of Tyrone Hayes. The biologist has devoted much of his career to studying a common herbicide used on corn, called atrazine; specifically, its effects on amphibians. Hayes believes the chemical impedes the sexual development of frogs, and he's publicly argued against the use of atrazine and criticized the corporation that makes it, Syngenta.
Originally published on Wed February 5, 2014 4:34 pm
Part of an antitrust agreement with the European Union regulators, Google has agreed to tweak its search results in Europe.
The search giant has agreed that when a user searches for a product, for example, the search results of its rivals — Amazon, let's say — will be displayed along with those of advertisers paying Google for prominent space.
A few days in the dark can improve an animal's hearing, scientists report this week in the journal Neuron. This temporary loss of visual input seems to trigger favorable changes in areas of the brain that process auditory information, they say.
Hackers who broke into Target's computer network and stole customers' financial and personal data used credentials that were stolen from a heating and air conditioning subcontractor in Pennsylvania, according to digital security journalist Brian Krebs.