Heavens

Pointing is infants' first communicative gesture

Catalan researchers have studied the acquisition and development of language in babies on the basis of the temporary coordination of gestures and speech. The results are the first in showing how and when they acquire the pattern of coordination between the two elements which allows them to communicate very early on.

The chemistry of Sriracha: Hot sauce science

WASHINGTON, Feb. 24, 2014 — Forget ketchup and mustard — Sriracha might be the world's new favorite condiment. Beloved by millions for its unique spicy, garlicky, slightly sweet flavor, the chemistry of "rooster sauce" is the subject of the American Chemical Society's latest Reactions video. The video is available at http://youtu.be/U2DJN0gnuI8.

Oldest bit of crust firms up idea of a cool early Earth

MADISON, Wis. – With the help of a tiny fragment of zircon extracted from a remote rock outcrop in Australia, the picture of how our planet became habitable to life about 4.4 billion years ago is coming into sharper focus.

Stream of stars in Andromeda satellite galaxy shows cosmic collision

The Andromeda Galaxy is surrounded by a swarm of small satellite galaxies. Researchers from the Niels Bohr Institute, among others, have detected a stream of stars in one of the Andromeda Galaxy's outer satellite galaxies, a dwarf galaxy called Andromeda II. The movement of the stars tells us that what we are observing is the remnant of a merger between two dwarf galaxies. Mergers between galaxies of such low mass has not been observed before. The results are published in the scientific journal, Nature.

NASA's IRIS spots its largest solar flare

IRIS studies the layer of the sun's atmosphere called the chromosphere that is key to regulating the flow of energy and material as they travel from the sun's surface out into space. Along the way, the energy heats up the upper atmosphere, the corona, and sometimes powers solar events such as this flare.

NASA sees Tropical Cyclone Guito exit the Mozambique Channel

NASA's Terra satellite captured a visible image of Tropical Cyclone Guito as it exited the Mozambique Channel and moved into the open waters of the Southern Indian Ocean.

The Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies aboard NASA's Terra satellite captured a visible image of Tropical Cyclone Guito on Feb. 21 at 07:05 UTC/2:05 a.m. EST and took a visible image of the storm exiting the Mozambique Channel. The image showed bands of thunderstorms were still wrapping around the western quadrant of the storm.

Will plug-in cars crash the electric grid?

Selecting a Chevy Volt, Tesla Model S, Nissan Leaf — or one of many other new models — shoppers in the United States bought more than 96,000 plug-in electric cars in 2013. That's a tiny slice of the auto market, but it's up eighty-four percent from the year before. By 2020, the International Energy Agency forecasts, there will be 20 million electric vehicles on the world's roads, many of them plug-ins.

NASA researcher finds planet-sized space weather explosions at Venus

Researchers recently discovered that a common space weather phenomenon on the outskirts of Earth's magnetic bubble, the magnetosphere, has much larger repercussions for Venus. The giant explosions, called hot flow anomalies, can be so large at Venus that they're bigger than the entire planet and they can happen multiple times a day.

NASA's TRMM satellite saw extreme rainfall from Tropical Cyclone Guito

At NASA's Goddard Space Flight Center in Greenbelt, Md. a rainfall anomaly analysis was made by comparing rainfall data compiled during the twelve year period from 2001-2012 to "near real-time" Multi-satellite Precipitation Analysis data collected for the same period. That analysis showed that rainfall in the northern Mozambique Channel has been above normal for the past month.

Sustainable manufacturing system to better consider the human component

CORVALLIS, Ore. – Engineers at Oregon State University have developed a new approach toward "sustainable manufacturing" that begins on the factory floor and tries to encompass the totality of manufacturing issues – including economic, environmental, and social impacts.

This approach, they say, builds on previous approaches that considered various facets of sustainability in a more individual manner. Past methods often worked backward from a finished product and rarely incorporated the complexity of human social concerns.

New research shows the way a room is lit can affect the way you make decisions

The next time you want to turn down the emotional intensity before making an important decision, you may want to dim the lights first.

A new study from the University of Toronto Scarborough shows that human emotion, whether positive or negative, is felt more intensely under bright light. Alison Jing Xu, assistant professor of management at UTSC and the Rotman School of Management, along with Aparna Labroo of Northwestern University, conducted a series of studies to examine the unusual paradox of lighting and human emotion.

Astronomers find solar storms behave like supernovae

Researchers at UCL have studied the behaviour of the Sun's coronal mass ejections, explaining for the first time the details of how these huge eruptions behave as they fall back onto the Sun's surface. In the process, they have discovered that coronal mass ejections have a surprising twin in the depths of space: the tendrils of gas in the Crab Nebula, which lie 6500 light-years away and are millions of times larger.

Remote Antarctic telescope reveals gas cloud where stars are born

Using a telescope installed at the driest place on earth - Ridge A in Antarctica – a UNSW-led team of researchers has identified a giant gas cloud which appears to be in an early stage of formation.

Giant clouds of molecular gas – the most massive objects in our galaxy – are the birthplaces of stars.

"This newly discovered gas cloud is shaped like a very long filament, about 200 light years in extent and ten light years across, with a mass about 50,000 times that of our sun," says team leader, Professor Michael Burton, an astronomer at UNSW Australia.

Rocks around the clock: Asteroids pound tiny star

Scientists using the Australian Commonwealth Scientific and Industrial Research Organisation's (CSIRO) Parkes telescope and another telescope in South Africa have found evidence that a tiny star called PSR J0738-4042 is being pounded by asteroids — large lumps of rock from space.

"One of these rocks seems to have had a mass of about a billion tonnes," CSIRO astronomer and member of the research team Dr Ryan Shannon said.

PSR J0738-4042 lies 37,000 light-years from Earth in the constellation of Puppis.

Ants build raft to escape flood, protect queen

When facing a flood, ants build rafts and use both the buoyancy of the brood and the recovery ability of workers to minimize injury or death, according to a study published in PLOS ONE on February 19, 2014 by Jessica Purcell from University of Lausanne, Switzerland, and colleagues. Furthermore, the queen ant is placed in the middle and protected on all sides by the rafting ants.