Researchers recently discovered what was thought to be a distinct species of butterfly is actually the female of a species known to science for more than a century.

In one of the largest efforts to build a comprehensive catalog of genetic vulnerabilities in cancer, researchers have identified more than 760 genes upon which cancer cells from multiple types are strongly dependent for their growth and survival. While many of these dependencies are specific to certain cancer types, about 10 percent are common across multiple cancers, suggesting that a relatively small number of therapies may combat multiple cancer types. Mutations accounted for only a small percentage of dependencies.

Humanmade peptides that directly disrupt the inner workings of a gene known to support cancer's spread significantly reduce metastasis in a mouse model of breast cancer, scientists say.

An imaging method that reveals a much more diverse and flexible DNA-protein chromatin chain than previously thought has now been developed by researchers. The result suggests a nimbler structure to regulate gene expression, and provide a mechanism for chemical modifications of DNA to be maintained as cells divide.

A breakthrough has been made in the area of material design -- one that challenges the commonly held view on how the fundamental building blocks of matter come together. Scientists have shown that the granular building blocks in copper can never fit together perfectly, but are rotated causing an unexpected level of surface roughness. This behavior, previously undetected, will have important implications for how materials are designed.

Up to half of the matter in our Milky Way galaxy may come from distant galaxies, astrophysicists have discovered in a first-of-its-kind analysis. As a result, each one of us may be made in part from extragalactic matter. Using supercomputer simulations, the researchers found an unexpected mode for how galaxies acquired matter: intergalactic transfer. Supernova explosions eject copious amounts of gas from galaxies, causing atoms to be transported from one galaxy to another via powerful galactic winds.

Two gut pathogens commonly found in malnourished children combine to worsen malnutrition and impair growth in laboratory mice, according to new research.

By omitting mechanistic drivers such as sunlight, a statistical theory accurately describes broad ecological patterns in a Panama forest, as well as other natural systems and communities.

Skin transplant surgery has long-term benefit for restoring skin pigmentation caused by the skin disease vitiligo, new research shows. In a retrospective study, researchers found that a majority of areas of the skin treated with surgery still had 'very good to excellent' color match pigmentation five years later.

A cluster of nerve cells in the male mouse's brain have been identified that, when activated, triggers territorial rage in a variety of situations. Activating the same cluster has no such effect on female mice.

Modern films and TV shows are filled with spectacular computer-generated sequences computed by rendering systems that simulate the flow of light in a three-dimensional scene and convert the information into a two-dimensional image. But computing the thousands of light rays (per frame) to achieve accurate color, shadows, reflectivity and other light-based characteristics is a labor-intensive, time-consuming and expensive undertaking. An alternative is to render the images using only a few light rays.

Exosuits can be used to improve walking after stroke, say researchers. This is a critical step in de-risking exosuit technology towards real-world clinical use.

Astronomers have discovered 23 young galaxies, seen as they were 800 million years after the Big Bang.

Analysis of strontium isotopes in teeth from Neolithic cattle suggest that early Europeans used different specialized herding strategies.

3.6 out of 1,000 children in the US are diagnosed with cerebral palsy. Their symptoms can include abnormal gait patterns such as crouch gait, characterized by excessive flexion of the hips, knees, or ankles. A pilot study demonstrates a robotic training method that improves posture and walking in children with crouch gait by enhancing their muscle strength and coordination.