Is there anybody out there?
Hubble spots atmosphere on planet 150 light years away.
Astronomers have glimpsed the atmosphere of a planet in a solar system other than our own for the first time. The feat is a first step towards detecting planets capable of supporting life elsewhere in the Universe.
David Charbonneau, of the California Institute of Technology, Pasadena, and colleagues, pointed the Hubble space telescope at the planet, which lies 150 light years away in the constellation Pegasus. Of the 74 extrasolar planets discovered so far, this is the only one whose orbit passes between its star and the Earth, allowing the researchers to catch the signs of starlight shining through its atmosphere.
Each element and compound in the planet’s atmosphere absorbs and scatters starlight of a tell-tale colour. The researchers fine-tuned Hubble to hunt for the signature of sodium, because this element gives a particularly strong signal: "a little goes a really long way," says Charbonneau.
In fact, they saw less sodium in the atmosphere than theoretical models had predicted, perhaps, suspects Charbonneau, because clouds in the planet’s atmosphere blot out some of the starlight.
Next, the team hopes to find potassium, methane and water vapour. While the planet is almost certainly too hot and reactive to contain any of the oxygen that would be the give-away of a potentially inhabited world, Charbonneau isn’t discouraged. The discovery of Earth-like planets is "much closer than most people imagine," he says.
Two space telescopes currently on the drawing board - NASA’s Kepler and the European Space Agency’s Eddington, should have the power to find Earth-sized planets orbiting distant stars at more hospitable distances, and analyse their atmospheres. Kepler could be finding worlds like our own by 2010.
JOHN WHITFIELD | © Nature News Service
Move over, lasers: Scientists can now create holograms from neutrons, too
21.10.2016 | National Institute of Standards and Technology (NIST)
Finding the lightest superdeformed triaxial atomic nucleus
20.10.2016 | The Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences