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Researchers think they have come up with a way to tell fossils of male dinosaurs from those of females — at least for some small feathered species. The key differences between the sexes lie in bones near the base of the tail.

The crystals are metal–organic frameworks (MOFs), molecular scaffolds made up of metal-containing nodes linked by carbon-based struts . The resulting pores are ideal for trapping guest molecules and, in some cases, forcing them to participate in chemical reactions. And they can be tailored with exquisite precision: researchers have created more than 20,000 types of MOF,…

Decades after scientists decided that the famed dinosaur never actually existed, new research says the opposite

Over the past year, Oxford University philosophy professor Nick Bostrom has gained visibility for warning about the potential risks posed by more advanced forms of artificial intelligence. He now says that his warnings are earning the attention of companies pushing the boundaries of artificial intelligence research.

Research led by a University of New Hampshire professor has identified a new source of methane for gas hydrates — ice-like substances found in sediment that trap methane within the crystal structure of frozen water — in the Arctic Ocean. The findings, published online now in the May 2015 journal Geology, point to a previously undiscovered,…

In their investigations into the potential therapeutic functions of stem cells, scientists have discovered another way to help those suffering from neurodegenerative and other incurable diseases. With stem cells, researchers can study how these diseases begin and even test the efficacy of drugs on cells from the very people they’re intended to treat.

Researchers have found genetic signatures among Britons that betray their historical roots in particular locales of the United Kingdom, leading to the finest-scale map of genetic variation yet created. The analysis — which shows a snapshot of clusters of genetic variation in the late 1800s, when people were less likely to migrate far from their…

The world is full of bloody conflicts that can drag on for decades. Some researchers are trying to find resolutions through complexity science.

To some people, the transition to daylight saving time means a few days of sleep deprivation, or the chance to leave work before the sky is completely dark. To others, it’s a perfect opportunity to conduct scientific research.