Biologists trying to create laboratory models of the early growth of a human embryo have taken a major step forward. In preprints posted online on Thursday and Friday, four research teams reported using various kinds of human stem cells, some genetically modified, to create ersatz embryos that closely resemble real embryos that are up to 14 days old, replicating a period in human...

It’s not every day that police storm through the doors of a scientific session and eject half the audience. But that is what occurred on Friday at the Boston Convention and Exhbition Center during a round of scientific presentations featuring Juan Carlos Izpisua Belmonte, a specialist in “rejuvenation” technology at a secretive, wealthy, anti-aging startup called Altos Labs....

Marine sponges have started dying in vast numbers in coastal areas around the globe. Just this year, thousands of sponges turned white and died in New Zealand and in the Mediterranean Sea. This has been happening when the water gets too warm, but the underlying cause has remained a mystery. Until now.

Recent claims by an ex-US intelligence agency whistleblower about alien spacecraft landings have been met with scepticism by scientists – not least over the galactic visitors’ driving skillsAnother day, another story about the US government hiding the fact that it has retrieved alien spacecraft. You can hear similar claims all the time from conspiracy theorists in certain corners of the...

Our new research in the Antarctic suggests that the vital layer of cold water on the sea bed, which circulates the globe and influences the ocean's ability to continue absorbing much of the rise in atmospheric heat and greenhouse gas emissions, is heating up and shrinking.

The invention of electric light has extended our lives deeper into the night: street lamps help us travel more safely outdoors, while lighting indoors lets us work and play for longer. Entire stadiums are drenched in light so that people can watch sport at night. Even your garden may be lit up to accentuate its finer features.

Paul Nelson is used to doing battle with an invasive fruit fly called the spotted wing drosophila, a pest that one year ruined more than half the berries on the Minnesota farm he and his team run. In recent years, they've cut their losses closer to 5%, but it's been labor-intensive and expensive.

Why treat fatherhood as a miracle? This was my question when Murphy, a bald eagle, became a viral sensation for being a great stepdad. At first, Murphy tried to incubate a rock at the World Bird Sanctuary in Valley Park, Missouri. When the sanctuary received an eaglet that had dropped out of its nest, they allowed Murphy to move from rock-sitting to actual offspring care. He did so well that the...

Keeping up with the journeys of wolves and welfare of wild horses has never been easier. With a GPS wildlife tracker powered by an animal's own movements, University of Copenhagen researchers have solved a problem faced by biologists and wildlife managers seeking to track wild animals year after year: dead batteries.

When whales wash ashore, it might be people's first instinct to help push them back in the water. It is the wrong course of action, says an official with the Nova Scotia-based Marine Animal Response...

Research led by the University of Pennsylvania, Philadelphia, has used siRNA-based silencing of protein cyclophilin A (CyPA) to reduce tumor burden and extend the lives of patients with multiple myeloma.

Remains of a species of herbivorous dinosaur previously unknown in the southern hemisphere have been discovered in Chile, challenging long-held beliefs about the range of duck-billed dinosaurs, scientists said Friday.