South African scientists say they’ve discovered the most complete skeleton ever of an early human ancestor – in a rock that had lain unnoticed in a lab for years. It was only when a technician noticed a tooth protuding from the stone last month that an investigation and CT scan revealed significant parts of Australopithecus…
Stone spearheads and human DNA found in Oregon caves, anthropologists say, have produced firmer evidence that these are the oldest directly dated remains of people in North America. They also show that at least two cultures with distinct technologies — not a single one, as had been supposed — shared the continent more than 13,000…
Georgia Tech researchers say they’ve resurrected a 500-million-year-old gene from bacteria and inserted it into modern-day Escherichia coli (E. coli) bacteria. The resurrected bacterium has been growing for more than 1,000 generations, providing scientists a chance to observe evolution in action, the university announced. “This is as close as we can get to rewinding and…
A detailed genetic analysis has settled the question of how and when the first Americans arrived in the continent. Scientists have found that Native American populations from Canada to the southern tip of Chile arrived in at least three waves. Most are descended entirely from a single group of migrants that crossed over through Beringia,…
The equivalent of an MRI of the sun was created by scientists, who studied high-resolution images of the sun’s surface taken by NASA’s Solar Dynamics Observatory showing motions on the sun’s surface caused by convection. The findings challenge our existing explanations of the formation of sunspots and magnetic field generation.
The Hubble Space Telescope has captured images of three odd galaxies that may help scientists solve a 13 billion-year cosmic mystery. The galaxies are so old and faint that astronomers nicknamed them “ghost galaxies” in a description. The objects are among the smallest and faintest galaxies near our own Milky Way galaxy, researchers said. “These…
A volcanic eruption around 579 million years ago buried a ‘nursery’ of the earliest-known animals under a Pompeii-like deluge of ash, preserving them as fossils in rocks in Newfoundland, new research suggests. An international team looked for evidence of life from the mysterious Ediacaran period (635-542 million years ago) in which the first ‘animals’ –…
Mummies found off the coast of Scotland are Frankenstein-like composites of several corpses, researchers say. This mixing of remains was perhaps designed to combine different ancestries into a single lineage, archaeologists speculated. The bodies were first unearthed in 2001 during excavations beneath the foundations of an approximately 3,000-year-old house on South Uist, an island in…
It is natural for those not deeply involved in the half-century quest for the Higgs Boson – one of the most important missing pieces of the jigsaw puzzle that is nature – to ask why they should care about this seemingly esoteric discovery. There are three reasons. First, it caps one of the most remarkable…
Physicists at CERN delivered big news when they announced the almost certain discovery of the Higgs boson — the so-called “God particle” thought to be the key to the formation of matter, and life. They were able to detect what they believe to be the Higgs boson by firing particles around a giant, $10 billion…