A new type of “quasiparticle” theorized by Caltech’s Gil Refael, a professor of theoretical physics and condensed matter theory, could help improve the efficiency of a wide range of photonic devices—technologies, such as optical amplifiers, solar photovoltaic cells, and even barcode scanners, which create, manipulate, or detect light.
The photographs of Neil Armstrong taking his ‘small step for man’ from Apollo 11 are instantly recognisable and some of the most famous in the world.
But there are equally stunning images from Nasa’s Apollo missions that are not so familiar and are so perfect, they look like stills from a sci-fi film.
Related: Does this Apollo 17 photo show an alien spaceship? UFO hunters claim lights in vintage shot are proof of ET, but one expert says it’s probably just space junk
Raising puppies and cheetah kittens together helps refocus the big cats’ nervous energy, zoos have discovered.
Mixed-species friendships are all the rage these days, even between infamously mortal enemies like cats and dogs.
Crows mourn their dead to try and learn about potential dangers to their own lives, researchers have found.
They found the birds can even remember an animal or person seen with a dead crow.
The birds were also able to easily distinguish between people or hawks carrying dead crows and other birds.
The skin of a woolly mammoth preserved in the Siberian permafrost for more than 10,000 years has given Russian scientists fresh hope of being able to clone the extinct giants.
The fragments of skin were discovered along with other remains from six of the ice age creatures.
Researchers are now examining it for signs of ‘living cells’ in a special laboratory set up as part of attempts to resurrect the beasts.
Elephants hardly ever get cancer, but until now, researchers were stumped as to why.
In a study that could help lead to a way to wipe out the disease in people, researchers identified a cancer-destroying mechanism involving a gene that encodes for the tumor suppressor protein p53.
Honeybees need a healthy diet of pollen, nectar and water. But at a bee laboratory in eastern Washington state, Steve Sheppard fills their feeding tubes with murky brown liquid from the forest.
His bees are getting a healthy dose of mushroom juice.
A pioneering surgical technique has restored some hand and arm movement to patients immobilized by spinal cord injuries in the neck.
Like railroad switchmen, the focus is on rerouting passageways. But, instead of trains on a track, surgeons redirect peripheral nerves in a quadriplegic’s arms and hands by connecting healthy nerves to the injured nerves.
Working with gut stem cells from humans and mice, scientists from the Johns Hopkins Children’s Center and the University of Pittsburgh have successfully grown healthy intestine atop a 3-D scaffold made of a substance used in surgical sutures.
Last August, the seasonal harmful algal blooms (HABs) in Lake Erie grew so extreme that they poisoned the water system in Toledo, Ohio, leaving nearly half a million residents without drinking water. But a few researchers at the time collected some of the toxic HABs, and have now shown that, by heating them at temperatures of 700-1000 °C in argon gas, the HABs can be converted into a material called “hard carbon” that can be used as high-capacity, low-cost electrodes for sodium-ion (Na-ion) batteries.
A researcher from the University of Southampton has produced a scientific study of the climate scenario featured in the disaster movie ‘The Day After Tomorrow’.
In the 2004 film, climate warming caused an abrupt collapse of the Atlantic meridional overturning circulation (AMOC), leading to catastrophic events such as tornados destroying Los Angeles, New York being flooded and the northern hemisphere freezing.
A reassessment of ancient rocks has led scientists to estimate that Earth’s inner core started to form earlier than was previously thought, around 1.3 billion years ago.
As it started to freeze, the core began generating a bigger magnetic field, which continues to today.
Whale Rock. It’s got quite a story to tell.
When scientists first saw it in images returned from Nasa’s Curiosity rover on Mars, they really weren’t sure what to make of it.
The path to Mars goes through the moon — or the region of space near the moon, anyway.
NASA aims to put boots on Mars in the 2030s after first gathering human-spaceflight experience and expertise in low Earth orbit and the “proving ground” of cis-lunar space near the moon.
Just days after doomsdayers claimed the end of the world was nigh, a Nasa animation has revealed a giant asteroid is heading towards the planet.
Called Asteroid 86666 (2000 FL10), the 1.5-mile wide (2.5km) space rock is due to make its closest pass on 10 October.
The first color images of Pluto’s atmospheric hazes, returned by NASA’s New Horizons spacecraft last week, reveal that the hazes are blue.
“Who would have expected a blue sky in the Kuiper Belt? It’s gorgeous,” said Alan Stern, New Horizons principal investigator from Southwest Research Institute (SwRI), Boulder, Colorado.
Ancient lakes that came and went over millions of years in the Gale crater basin on Mars may have persisted long enough for life to evolve in them, researchers have said.
Nasa scientists analysed fresh images sent back from the Curiosity rover and found evidence of lakes in the basin that lasted for up to 10,000 years at a time – potentially long enough to support life.