The most powerful solar flare of the year erupted from the sun today (April 11) sparking a temporary radio blackout on Earth, NASA officials say.
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The solar flare occurred at 3:16 a.m. EDT (0716 GMT) and registered as a M6.5-class sun storm, a relatively mid-level flare on the scale of solar tempests. It coincided with an eruption of super-hot solar plasma known as a coronal mass ejection.
Since two researchers suggested last year that the Grand Canyon was carved 70 million years ago (much older than the consensus of 6 million years), a…Read More »
rousing debate over the canyon's true age has played out at scientific meetings, through email, and now, in the pages of a respected journal.
In today's (April 11) issue of the journal Science, several geologists who've spent years roaming the Southwest's red rocks and cliffs respond to the original old Grand Canyon study, published in November 2012 in Science. Their critique hinges on two primary points: Assessing the laboratory techniques that revealed when the Grand Canyon's deepest rocks were brought to the surface, and rock evidence that points to a young Colorado River, the waterway now filling the gorge.
Rumblings at El Hierro volcano have quieted, allaying fears of a new underwater eruption at the Canary Islands peak.
Today (April 10), the government's volcano monitoring agency (Pevolca) lowered the volcanic risk to green, or normal. The announcement follows the gradual decrease in earthquakes since April 5 and lower carbon dioxide gas emissions since April 1, the agency said in a statement.
Oceanographers often proclaim maps of Mars are more complete than charts of Earth's seafloor.
Now, the planet's depths are a little clearer thanks to a newly released bathymetric map of the Southern Ocean surrounding Antarctica. For the first time, the deep canyons and steep mountains south of the 60th parallel appear in detail, according to a statement from the Alfred Wegener Institute's Helmholtz Centre for Polar and Marine Research.
NASA's Aqua satellite flew over Cyclone Victoria in the Southern Indian Ocean yesterday (April 11) and took a snapshot of the storm, which was in the shape of the letter "J." The shape was created by a band of thunderstorms that wrapped around the center of the circulation and extended northward.
Credit: Kwanghun Chung and Karl Deisseroth, Howard Hughes Medical Institute/Stanford University
For the first time, scientists have developed a way to make organs transparent to light while keeping them intact, providing a detailed glimpse of their…Read More »
Using the new technique, scientists imaged the neurological wiring in a mouse's brain. The method, known as CLARITY (Clear Lipid-exchanged Acrylamide-hybridized Rigid Imaging/Immunostaining/In situ hybridization-compatible Tissue-hYdrogel), was described online today (April 10) in the journal Nature.
Embryonic dinosaurs kicked and wiggled in the egg, a new discovery of a baby-dino-bone bed suggests.
The bones, all from not-yet-hatched embryonic dinosaurs, are among the oldest dinosaur-embryo fossils ever found. What's more, the embryo fossils came from separate nests and the dino embryos were at different stages of development when they died — two discoveries that will enable researchers to study how dinosaurs developed before hatching.
The gorgeous pink blooms of the cherry trees that dot the National Mall in Washington, D.C., have finally reached peak bloom, officials announced yesterday…Read More »
Peak bloom is reached when 70 percent of the blooms on the Yoshino Cherry trees (there are many different types of cherry trees) have fully opened, according to the website of the National Cherry Blossom Festival. The period of peak bloom can last for up to 14 days, the site says.