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Dec 25, 2018
US SpaceX First National Security Mission
Posted by Genevieve Klien in categories: security, space travel
SpaceX continues making news in 2018. The company first broke its own record from 2017 when it passed 18 launches in year. On Sunday, from Cape Canaveral, Florida, SpaceX launched another record-setting rocket… this one for U.S. national security. Arash Arabasadi reports.
This image from NASA’s Hubble Space Telescope of a bipolar star-forming region reminds us of a soaring, celestial snow angel. The outstretched “wings” aren’t snow at all, but are actually twin lobes of super-hot gas: https://go.nasa.gov/2EFQMFh
We’ve got lots of FREE eBooks and apps ready for you to download! Add some space to your life:
EBooks: https://go.nasa.gov/2EFZ2or Apps: https://go.nasa.gov/2EHwjj4
Dec 25, 2018
Mathematicians Disprove Conjecture Made to Save Black Holes
Posted by Xavier Rosseel in categories: cosmology, mathematics, physics
‘’As a result, it’s nonsensical to ask what happens to space-time beyond the Cauchy horizon because space-time, as it’s regarded within the theory of general relativity, no longer exists. “This gives one a way out of this philosophical conundrum,” said Dafermos.
Mathematicians have disproved the strong cosmic censorship conjecture. Their work answers one of the most important questions in the study of general relativity and changes the way we think about space-time.
Dec 25, 2018
Could We Be Outgrowing the Scientific Method?
Posted by Genevieve Klien in category: physics
Do all scientific theories require evidence? Some disciplines, like physics, might be outgrowing the scientific method.
Dec 25, 2018
Watch: Morphing material goes from flat to face
Posted by Genevieve Klien in categories: materials, nanotechnology
Scientists have created a rubbery, shape-shifting material that morphs from one sophisticated form to another on demand.
The shapes programmed into a polymer appear in ambient conditions and melt away when under heat. The process also works in reverse.
Continue reading “Watch: Morphing material goes from flat to face” »
Dec 25, 2018
Early-warning tools aim to prevent ‘water wars,’ curb droughts
Posted by Genevieve Klien in category: security
Water scarcity is a global security risk. Researchers are developing ways to forecast risks to prevent conflicts.
A plant grows between cracked mud at the Theewaterskloof dam near Cape Town, South Africa, on Jan. 21, 2018. The dam, which supplies most of Cape Town’s potable water, is currently dangerously low as the city faces “Day Zero”, the point at which taps will be shut down across the city. Mike Hutchings / Reuters file.
Dec 25, 2018
‘Hunger Hormone’ Ghrelin Aids Overindulgence
Posted by Genevieve Klien in categories: biotech/medical, food
Ghrelin, the hormone that makes you hungry, also makes food, and food smells, irresistibly appealing. Karen Hopkin reports.
‘Tis the season…for overeating! But it’s not just your lack of willpower or the omnipresent holiday treats. No, you can lay some of the blame on ghrelin. Because a new study shows that ghrelin, the hormone that makes you hungry, also makes food…and food smells…irresistibly appealing. The finding appears in the journal Cell Reports. [Jung Eun Han et al, Ghrelin Enhances Food Odor Conditioning in Healthy Humans: An fMRI Study].
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