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Using the new capabilities of the upgraded Karl G. Jansky Very Large Array (VLA), scientists have discovered previously-unseen binary companions to a pair of very young protostars, which gives strong support for one of the competing explanations for how double-star systems form.
Astronomers know that about half of all Sun-like stars are members of double or multiple-star systems, but have debated over how such systems are formed.
"The only way to resolve the debate is to observe very young stellar systems and catch them in the act of formation," said John Tobin, of the National Radio Astronomy Observatory (NRAO). "That's what we've done with the stars we observed, and we got valuable new clues from them," he added.

The imminent death of a family member is riddled with emotions for family family members. The reasons are obvious.  But it's not just them. 

How are emotions experienced in the body? Researchers at Aalto University say they know.

If you were a weather forecaster for exoplanet GJ 1214b you would have an easy job. Today's forecast: cloudy. Tomorrow: cloudy. Extended outlook: more clouds.
Determining the weather on a distant planet around another star hasn't really been possible before. 
GJ 1214b is classified as a super-Earth type planet because its mass is intermediate between those of Earth and Neptune. Super-Earths like GJ 1214b are among the most common type of planets in the Milky Way galaxy but because no such planets exist in our Solar System, the physical nature of super-Earths is largely unknown.

A new paper in Nature estimates that global average temperatures will rise at least 4°C by 2100 and potentially more than 8°C by 2200 if carbon dioxide emissions worldwide are not reduced -  due to a reestimate of the great unknowns of climate sensitivity, the role of cloud formation and whether this will have a positive or negative effect on global warming.
This new higher estimate was created using real world observations of water vapor in cloud formation. 

Scientists may have figured out how the molecular switch for sex gradually and adaptively evolved in the honeybee. It's been a long journey

While the number of killing frosts in southern Florida has remained unchanged since 1984, the number a short distance away declined enough that researchers are implicating global warming, and noted that the expansion of cold-sensitive mangrove forests along Florida's Atlantic Coast has led to them edging out salt marshes.
What happens when one ecosystem replaces another? Happens all of the time, of course, and has throughout history. But it's impossible to predict the result. People who live there are not complaining, though researchers up north are concerned.

An analysis from the University of Colorado School of Medicine shows patients with Medicaid insurance seeking care in an emergency department may be driven by lack of alternatives instead of the severity of their illness.
With the implementation of the Affordable Care Act, millions of new patients will be enrolled in Medicaid and added to an already overburdened primary care system. 

When it comes to the brain, there is very little science. fMRI imaging is subjective and pop psychology concepts even more so. Even when it comes to medical conditions, like schizophrenia, little is known. Its causes are unknown, there there is no objective test for it, and its diagnosis is based on an assortment of reported symptoms - and symptom-based diagnosis got replaced in most of medicine by the 1950s. The standard treatment, anti-psychotic medication, works less in less than half of those with a diagnosis and becomes increasingly ineffective over time.

By the time they turn two, most children have had respiratory syncytial virus (RSV) and suffered symptoms no worse than a bad cold.
Yet for some children, especially premature babies and those with underlying health conditions, RSV can lead to pneumonia and bronchitis, hospitalization and have long-term consequences.

If you have been to a tomato farm, you know that commercial tomato plants have a very different look from the backyard garden variety. Rather than being tall and lanky plants, tomatoes that will be canned for sauces and juice are harvested from plants that stop growing earlier than classic tomato varieties and are more like bushes. The architecture of these compact bushy plants allows mechanical harvesters to reap the crop, but the early end of growth means that each plant produces fewer fruits than their home garden cousins.

The federal government's proposal to discontinue protection for the gray wolf across the United States could have the unintended consequence of endangering other species, insist academics who don't actually live in places where wolves are running wild, threatening animals and people.