Tech for Humans



Science


Could an Oral Measles Drug Help the Unvaccinated?

Wed, 16 Apr 2014 18:00:00 GMT

A medication designed to inhibit measleslike virus in infected ferrets shows promise

-- Read more on ScientificAmerican.com


NASA Cassini images may reveal birth of a Saturn moon

Mon, 14 Apr 2014 18:03:58 EDT

NASA's Cassini spacecraft has documented the formation of a small icy object within the rings of Saturn that may be a new moon, and may also provide clues to the formation of the planet's known moons.


Cosmic slurp: Supercomputers help astronomers understand and predict how black holes swallow stars

Mon, 14 Apr 2014 15:08:48 EDT

A 'tidal disruption' occurs when a star orbits too close to a black hole and gets usurped. Researchers are using supercomputers to simulate tidal disruptions to better understand the dynamics of the process. Doing so will help astronomers find many more possible candidates of tidal disruptions in sky surveys and reveal details of how stars and black holes interact.


Maurício Tuffani: 'NY Times' associa devastação na Amazônia a novo Código Florestal

16 Apr 2014 15:53:00 -0300

As mudanças no Código Florestal brasileiro a partir de maio de 2012 foram destacadas ontem (terça, 15.abr) em editorial do jornal "The New York Times" que comentou o retrocesso na redução das taxas anuais de desmatamento na Floresta Amazônica. O texto, ... Leia post completo no blog Leia mais (04/16/2014 - 15h53)


Catch a Total Lunar Eclipse Sidling Up to Mars—and Send Us Your Photos

Tue, 15 Apr 2014 02:00:00 GMT

A total lunar eclipse will coincide with Mars's closest approach to Earth, offering stargazers an unusual show

-- Read more on ScientificAmerican.com


Mensageiro Sideral: Um poético poente marciano

16 Apr 2014 06:03:00 -0300

Bem, agora que a Lua vermelha já passou, e o mundo ainda não acabou, vamos dar uma rápida passada no planeta vermelho. O jipe Curiosity tirou uma das fotos mais bonitas de sua missão até agora: um encantador pôr do ... Leia post completo no blog Leia mais (04/16/2014 - 06h03)


Chance meeting creates celestial diamond ring

Wed, 09 Apr 2014 09:42:28 EDT

Astronomers have captured an eye-catching image of planetary nebula PN A66 33 -- usually known as Abell 33. Created when an aging star blew off its outer layers, this beautiful blue bubble is, by chance, aligned with a foreground star, and bears an uncanny resemblance to a diamond engagement ring. This cosmic gem is unusually symmetric, appearing to be almost circular on the sky.


Our Furry Friends Now Are Shaped by Biotechnology

Thu, 10 Apr 2014 19:30:00 GMT

Author Emily Anthes discusses her book Frankenstein's Cat: Cuddling Up to Biotech's Brave Beasts, out this week in paperback

-- Read more on ScientificAmerican.com


North America to experience total lunar eclipse

Tue, 08 Apr 2014 21:36:21 EDT

When people in North America look up at the sky in the early morning hours of April 15, they can expect the moon to look a little different. A total lunar eclipse is expected at this time, a phenomenon that occurs when the Earth, moon and sun are in perfect alignment, blanketing the moon in the Earth's shadow.


Saturn's hexagon: An amazing phenomenon

Tue, 08 Apr 2014 07:48:27 EDT

An unusual structure with a hexagonal shape surrounding Saturn's north pole was spotted on the planet for the first time thirty years ago. Nothing similar with such a regular geometry had ever been seen on any planet in the solar system. Astronomers have now been able to study and measure the phenomenon and, among other achievements, establish its rotation period. What is more, this period could be the same as that of the planet itself. Saturn is the only planet in the solar system whose rotation time remains unknown.


Dark Matter May Be Destroying Itself in Milky Way’s Core

Tue, 08 Apr 2014 11:30:00 GMT

Excess gamma-ray light at the galactic center may indicate invisible dark matter particles  

-- Read more on ScientificAmerican.com


Are We Any Closer to Knowing How Many Species There Are on Earth?

Tue, 08 Apr 2014 11:00:00 GMT

Are there half a million? 100 Million? After decades of research, there is no consensus

-- Read more on ScientificAmerican.com


Mensageiro Sideral: Curta o eclipse lunar, sem sangue!

14 Apr 2014 06:00:00 -0300

Na madrugada de hoje para amanhã temos o primeiro eclipse lunar total de uma série de quatro a se desenrolar entre este ano e o ano que vem. É uma "lua de sangue"? Um sinal do fim do mundo? Claro ... Leia post completo no blog Leia mais (04/14/2014 - 06h00)


Erramos: Inscrição que menciona "mulher de Jesus" é autêntica, diz estudo

13 Apr 2014 09:00:00 -0300

No texto "Inscrição que menciona "mulher de Jesus" é autêntica, diz estudo" (Ciência - 10/04/2014 - 22h18), publicado na versão impressa e no site da Folha, a tradução saiu inexata. O correto é "Convenientemente para alguns, também, a inscrição...", e não só "Convenientemente, também, a inscrição...". O texto foi corrigido. Leia mais (04/13/2014 - 09h00)


Fermi data tantalize with new clues to dark matter: Gamma rays from center of Milky Way galaxy

Thu, 03 Apr 2014 12:36:28 EDT

A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that some of this emission may arise from dark matter, an unknown substance making up most of the material universe. Using publicly available data from NASA's Fermi Gamma-ray Space Telescope, independent scientists at the Fermi National Accelerator Laboratory (Fermilab), the Harvard-Smithsonian Center for Astrophysics (CfA), the Massachusetts Institute of Technology (MIT) and the University of Chicago have developed new maps showing that the galactic center produces more high-energy gamma rays than can be explained by known sources and that this excess emission is consistent with some forms of dark matter.