Updated: 1 hour 57 min ago
The eerie glow of a dead star, which exploded long ago as a supernova, reveals itself in this Hubble Space Telescope image of the Crab Nebula. But, the ghoulish-looking object still has a pulse. Buried at its center is the star's tell-tale heart, which beats with rhythmic precision. The green hue has been added to give the image a Halloween theme.
NASA's New Horizons mission reached a major milestone this week when the last bits of science data from the Pluto flyby -- stored on the spacecraft's digital recorders since July 2015 -- arrived safely on Earth.
Global populations of vertebrates -- mammals, birds, reptiles, amphibians, and fish -- have declined by 58 percent between 1970 and 2012, states a new report. Animals living in the world's lakes, rivers, and freshwater systems have experienced the most dramatic population declines, at 81 percent. Because of human activity, the report states that without immediate intervention global wildlife populations could drop two-thirds by 2020.
A new method to determine how effectively immune cells kill their targets could help personalize immune therapies, report scientists.
Death vs. another hospital stay: Study suggests Medicare should weigh them equally when paying hospitals
Medicare should focus more on how well hospitals do at actually keeping patients alive during the first 30 days after a hospitalization, in addition to how well they do at keeping patients from being readmitted, a new analysis suggests.
The discovery of chains of atoms in a two-dimensional crystal could help researchers control the properties of matter.
In the past decade, ophthalmologists have been prescribing nutritional supplements to be taken daily to prevent or slow vision loss from age-related macular degeneration (AMD). Now, using nutritional supplements for eye health has become more common. But does increasing the recommended dose increase your protection? A case report reveals what can happen when a patient takes more of a supplement than their body needs.
Neanderthals in cold regions probably ate a lot more vegetable food than was previously thought, according to new research on ancient Neanderthal dental plaque.
New research reveals pictograms that will help seniors understand medication instructions, say investigators.
New research paves way for developing new treatments for asthma. Researchers have described their discovery as a ‘paradigm shift’ in understanding the life-threatening condition.
In a remarkable “two for one” discovery, scientists have illuminated a key molecular player in the addictive effects of morphine in animal models.
A three-dimensional computer model of the human genome has been created by researchers. The shape of DNA (as well as its sequence) significantly affects biological processes and is therefore crucial for understanding its function. This new study has provided a first three-dimensional, approximate but realistic, identikit of the human genome. Thanks to the characteristics of the new method, the structural reconstruction based on both experimental information and statistical methods will be refined as new experimental data become available.
A pathway essential to heart formation has now been discovered by scientists. In addition, in the process, they have unveiled a mechanism that may explain how some previously puzzling segments of the genome work.
New research identifies four organizational and administrative factors that can decrease teacher turnover and lift student test scores in math.
New research tracking population shifts over 30 years shows that increasing neighborhood-level diversity is a near-universal trend, outlines a new report.
Yes, money can lead to happiness, but how much debt one has should also be considered in the money-happiness equation, according to a new a study.
In this election year of unprecedented acrimony, one of the most polarizing issues of all is rooted in what's typically considered a national strength: diversity. But as it turns out, not all Americans value the country's multicultural ethos, according to a psychologist's study.
One of the biggest surprises about rising income inequality in the United States may be that economic factors aren't the biggest cause, a new study suggests.
Biologists recently used light-weight geolocation technology to follow a species of songbird on its 10,000-kilometer migration from the Middle East to sub-Saharan Africa.
Upper Paleolithic humans may have hunted cave lions for their pelts, perhaps contributing to their extinction, according to a new study.