sexta-feira, 13 de dezembro de 2013

A candle's flame In zero gravity

http://science1.nasa.gov/science-news/science-at-nasa/2000/ast12may_1/

Geminid Meteor Shower over Dashanbao Wetlands

http://apod.nasa.gov/apod/astropix.html

Take a moment: OneRepublic - Counting Stars


sábado, 7 de dezembro de 2013

ESA and Galileo Teacher Training Programme training workshop 2013


The 2013 workshop was aimed at teachers of students between 11 and 19 years of age and will be held from 25 to 29 November at The Lorentz Center@Snellius, Leiden, the Netherlands.

Participants at this workshop had the chance to learn about innovative tools and methods that use space science and astronomy to engage students in the sciences. Read more.


quinta-feira, 21 de novembro de 2013

Acoustic levitation


Cool!

segunda-feira, 18 de novembro de 2013

Comet ISON - Sixty Symbols


sábado, 9 de novembro de 2013

Biggest Things in Space


How to Survive a Lightning Strike


Fresh vs Frozen Food


terça-feira, 5 de novembro de 2013

Uma em cada cinco estrelas tem planetas habitáveis


Investigadores dos Estados Unidos garantem que uma em cada cinco estrelas como o Sol tem planetas que podem ser habitáveis. Uma dessas estrelas está apenas a 12 milhões de anos luz da Terra e pode ver-se nitidamente do nosso planeta.Ler mais.

Take a moment: Reload


sexta-feira, 25 de outubro de 2013

Back To The Moon For Good


Seven-planet solar system found


The discovery of a seventh planet around the dwarf star KIC 11442793 could be a record, according to two separate teams of researchers.´The system bears some similarities to our own, but all seven planets orbit much closer to their host star, which lies some 2,500 light-years from Earth.
The crowded solar system is described in two papers published on the pre-print server Arxiv.org. One of the identifications was made by volunteers using the Planet Hunters website. The site was set up to allow volunteers to sift through the public data from Nasa's Kepler space telescope - which was launched to search for so-called exoplanets - worlds orbiting distant stars. Read more.

quinta-feira, 24 de outubro de 2013

Descoberta a galáxia mais distante no universo

 Astrónomos norte-americanos descobriram a galáxia mais distante, até agora conhecida, cuja luz foi emitida quando o Universo apenas tinha cinco por cento da sua idade atual, 13.800 milhões de anos, divulgou hoje a revista Nature.
A distância da galáxia, batizada como z8-GND-5296, foi confirmada, de forma inédita, por um espetrógrafo, aparelho que faz o registofotográfico de um espetro luminoso. Ler mais.

sábado, 19 de outubro de 2013

There’s a storm coming



This awesome video shows the constant stream of material that the Sun throws out into the solar system. It was produced using the classifications from citizen scientists on the Solar Stormwatch project. The video covers three years of observations from STEREO (Solar TErrestrial RElations Observatory). 
Read more about the video and data analysis on the Solar Stormwatch blog here, and have a go at looking for solar storms yourself here.

quarta-feira, 9 de outubro de 2013

Scientists who took chemistry into cyberspace win Nobel Prize



Three U.S. scientists won the Nobel chemistry prize on Wednesday for pioneering work on computer programs that simulate complex chemical processes and have revolutionized research in areas from drugs to solar energy. Read more.

terça-feira, 8 de outubro de 2013

Nobel da Física de 2013 para o bosão de Higgs


 Prémio distingue o belga François Englert e o britânico Peter Higgs, dois dos físicos teóricos que, há cerca de 50 anos, postularam a existência de uma partícula elementar que confere massa a todas as outras. 
Em 1964, Englert e o seu colega Robert Brout (entretanto falecido), por um lado, e Higgs, pelo outro, teorizaram de forma independente que devia existir uma partícula subatómica – que se tornaria famosa sob o nome de bosão de Higgs –, capaz de dar massa a todas as outras partículas previstas pelo chamado Modelo-Padrão da física das partículas, que descreve a composição, a nível subatómico, do mundo que nos rodeia. E, passadas quase cinco décadas, o bosão de Higgs foi finalmente avistado no LHC – o grande o acelerador de partículas do Laboratório Europeu de Física de Partículas (CERN), perto de Genebra, na Suíça – e a sua existência efectiva anunciada em Julho de 2012. A detecção do bosão de Higgs permitiu completar o elenco das partículas previstas pelo Modelo-Padrão.  Ler mais.


segunda-feira, 7 de outubro de 2013

Sun4All, ou como qualquer um de nós pode identificar manchas solares


Cidadãos podem contribuir para o estudo dos 30.000 registos do Sol obtidos no Observatório Astronómico de Coimbra. Projecto é lançado na próxima quarta-feira.
O projecto científico português Sun4all, coordenado pelo astrónomo João Fernandes, do Departamento de Matemática da Universidade de Coimbra, está integrado no projecto Socientize, financiado pela União Europeia, que promove a chamada “ciência cidadã”.
“Há conhecimento científico que pode ser produzido pelos cidadãos, que não são cientistas daquela área, mas que podem contribuir mediante treino”, esclarece Paulo Gama Mota, um dos coordenadores locais do projecto. Ler mais.

quinta-feira, 3 de outubro de 2013

World Space Week 2013: "Exploring Mars, Discovering Earth"

 
During World Space Week from 4 to 10 October 2013 we will show you what we are learning about Mars, but also what we are learning about ourselves! Mars gives us an opportunity to define from scratch what world we want to live in. 
How can limited resources on a planet be used to build a new civilization, without depleting these resources? How can we create an environment that supports human life, without destroying critical elements needed to sustain other planetary processes?  Read more.

quarta-feira, 2 de outubro de 2013

Gravity


Preserved for eternity

There's a deceptively still body of water in Tanzania with a deadly secret—it turns any animal it touches to stone. The rare phenomenon is caused by the chemical makeup of the lake, but the petrified creatures it leaves behind are straight out of a horror film.
Photographed by Nick Brandt in his new book, Across the Ravaged Land, petrified creatures pepper the area around the lake due to its constant pH of 9 to 10.5—an extremely basic alkalinity that preserves these creatures for eternity.Read more.

quarta-feira, 25 de setembro de 2013

Why a Water Bridge Doesn't Collapse


 If you apply an electric voltage across two water-filled beakers and separate them, something strange happens: The water stretches from beaker to beaker, creating a bridge that defies gravity. Water bridges were discovered 120 years ago, but no one has ever been sure why they do not collapse. Read more.


domingo, 22 de setembro de 2013

Astronomy for the Public


                     

Uma pausa com: Cosmic Love


Fall


sábado, 21 de setembro de 2013

CERN Open Days


Leaf Colour Chart

A sure sign of the onset of autumn can be seen in the leaves of trees. During the spring and summer the leaves have served as factories where most of the foods necessary for the tree's growth are manufactured.
The process, known as photosynthesis, takes place in the leaf in numerous cells containing chlorophyll a and b. Chlorophyll a molecules absorb light at a wavelength of 400-500nm, while chlorophyll b absorbs light in the 550-700nm as a result, the green spectrum is reflected and this is what we see. Along with the green pigment are yellow to orange pigments; carotenes and xanthophyll, however most of the year these colours are masked by great amounts of chlorophyll. 

sexta-feira, 20 de setembro de 2013

Royal Observatory Greenwich Announces Astronomy Photographers of the Year

Guiding Light to the Stars by Mark Gee (Australia)
 
Rho Ophiuchi and Antares Nebulae by Tom O’Donoghue (Ireland)



quarta-feira, 18 de setembro de 2013

Origins 2013 - a European Researchers’ Night event

 Origins 2013 - a European Researchers’ Night event

Friday September 27 2013, in Paris, Geneva and Bologna

NASA Invites Public To Q&A Session With Women Working On Webb Telescope



Announcing a Q&A on Reddit with women working on the James Webb Space Telescope! Ask your questions Thurs, Sept. 26, 2pm ET. Read more.

ESA Kids


Noite Europeia dos Investigadores 2013


What Direction Does Earth's Center Spin? New Insights Solve 300-Year-Old Problem

Researchers have solved a 300-year-old problem by demonstrating that the Earth's inner core, which is made up of solid iron, spins in an eastward direction, rotating faster than the rest of the planet due to the behaviour of the outer core, which is comprised mainly of molten iron and spins westward at a slower pace. This is a response to the Earth's geomagnetic field. Read more.

quarta-feira, 11 de setembro de 2013

NASA Maps Out Goals for Europa Landing



The top priority of a robotic lander mission to Jupiter’s potentially life-supporting moon Europa should be investigating the composition and chemistry of its subsurface ocean, scientists say.
Such a mission should also aim to determine the thickness and dynamics of the moon’s ice shell and characterize the surface geology of Europa in detail, a NASA-appointed “science definition team” reports in a new study in the journal Astrobiology. Read more.

Spiders on drugs

During this experiment, spiders were exposed to a variety of drugs to help determine their effect on the brain.  Spiders who had been given marijuana started out well enough, but were unable to maintain focus.
Benzedrine (speed) produced spiders who spun enthusiastically, though no great thought or care was put into the web design.
Caffeine, one of the most common stimulants taken by humans, produced an erratic web.
Chloral hydrate, an ingredient in sleeping pills, made the spiders doze off after barely getting started on the web.
Though this 1995 experiment sought to determine toxicity of drugs, it was a continuation of experimentation of spiders on drugs that had started in 1948 by P. N. Witt.

Mars One



Mars 2023 - Inhabitants wanted 

Já são mais de 200 mil as pessoas que prestaram as provas que ditam a seleção para o projeto "Mars One", um "reality show"que marcará a primeira expedição do homem a Marte. Além disso, o objetivo desta iniciativa, de uma organização sem fins lucrativos holandesa, é o de estabelecer uma colónia humana em 2023, com o envio de quatro astronautas que viverão num piso assente em energia solar e com os elementos necessários de habitabilidade. Ler mais.

segunda-feira, 2 de setembro de 2013

Science news


sexta-feira, 30 de agosto de 2013

Birth of Super-massive Black Holes

Astronomers believe they have discovered the origin of our universe’s first super-massive black holes, which formed some 13 billion years ago. Read more.

domingo, 11 de agosto de 2013

Chuva de estrelas cadentes pode ser visível este fim de semana


A chuva de estrelas cadentes, cientificamente designada como chuva de meteoros, acontece quando a Terra cruza um enxame de meteoroides 
 Imagem: Wikipedia/Brocken Inaglory/Creative Commons
 
O fenómeno repete-se anualmente, por esta altura, e pode ser observado à vista desarmada, durante a noite, com céu limpo e muito escuro, fora das cidades, num local exterior amplo como o campo.
Segundo o diretor do Observatório Astronómico de Lisboa (OAL), Rui Agostinho, as previsões meteorológicas apontam para que haja "condições ótimas" de visibilidade da "Perseidas", uma das chuvas de estrelas cadentes mais importantes.
A "Perseidas" tem o seu pico de atividade na segunda-feira, ao emitir uma média de 110 meteoros por hora. Contudo, de acordo com Rui Agostinho, pode ser vista a olho nu também hoje e no domingo, com uma média de 80 a 90 meteoros por hora
A chuva de estrelas cadentes, cientificamente designada como chuva de meteoros, acontece quando a Terra cruza um enxame de meteoroides, neste caso na órbita do cometa "Swift-Tuttle". Ler mais.

quinta-feira, 8 de agosto de 2013

The sun's polarity is about to flip!

It happens about every 11 years and astronomers don't know why -- but they know the signs.

The sun is reaching its solar maximum. We've been seeing a typical increase in solar flares that can potentially damage satellites and interfere with communications on the ground. But it also makes for some beautiful auroras! The sun's north pole has already changed polarity and astronomers predict it'll take 3 to 4 months for the south pole to catch up. Read more.

domingo, 21 de julho de 2013

No Planet left behind


Where Do Deleted Files Go?


quarta-feira, 3 de julho de 2013

Where is the True North Pole?


To learn science, add art with Science&Art@School

 The Incredible Science-Art Collider by students in Graz, Austria (Image: Michael Hoch)

 Many scientists see intellectual as well as aesthetic beauty in their research. Now an education project from the CMS collaboration is harnessing artistic beauty to inspire students about the science of particle physics.
CMS physicist and artist Michael Hoch recently launched the Science&Art @ School project to engage students with stories from particle physics, which he hopes will help them to re-see the natural world in aesthetic as well as scientifically accurate ways. Hoch says that artistic methods can lead students to a deeper understanding of the beauty, value and transformative power of science. "I believe that essential aspects of our research here at CERN can be viewed as beautiful artistic creations," he says.
The first Science&Art @ School workshop took place in Graz, Austria, from 5-7 June, bringing together 62 students from two high schools nearby: Graz International Bilingual School (GIBS) and BORG Monsbergergasse. Read more.

Hidden Universe

From these extreme locations on Earth, the audience will be taken on a breathtaking tour of deep space in the cinematic medium that does it best: IMAX 3D. Viewers will peer deep inside vivid galaxies and nebulae, travel over the terrain of Mars, and witness stunning images of the Sun. The Universe is brought to life through real images and previously unseen giant-screen 3D simulations based on astronomical data gathered by the VLT, ALMA, and other telescopes such as the NASA/ESA Hubble Space Telescope, creating an immersive IMAX 3D experience. Read more.



quarta-feira, 26 de junho de 2013

Meet an Astronaut


terça-feira, 25 de junho de 2013

Lenticular clouds

Amazing shot of lenticular clouds over Lake Crowley, California.

Image Credit : Carry Matthews

How do bulletproof vests work?


 James May's Q&A (Ep 25) - Head Squeeze

Road to Nowhere - Supermoon

Supermoon rises over this road to nowhere in eastern South Dakota.

Copyright : Aaron J. Groen

sexta-feira, 21 de junho de 2013

A Solstice Sunset Self Portrait

Image Credit & Copyright: Danilo Pivato

quarta-feira, 19 de junho de 2013

Four Planet Sunset