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In this week's science news, we take a journey to the past, as far back as our very earliest human ancestors. First stop, ancient Egypt, where archaeologists working at a temple in Taposiris Magna have discovered what they believe is a bust of Queen Cleopatra VII, famed for her romances with Roman leaders Julius Caesar and Mark Antony. While not everyone is convinced, coins depicting the late queen's head were also found at the site, supporting a connection with the ancient ruler.
This is not the only tantalizing treasure that's been revealed this week. Going further back, imagine how a 9-year-old boy must have felt when a mysterious, triangle-shaped rock he discovered three years earlier on a beach in Sussex, England, turned out to be a 50,000-year-old Neanderthal hand ax. "It's an absolutely incredible find," James Sainsbury, curator of archaeology and social history at Worthing Theatres and Museum, told Live Science.
But that's enough looking into the past (at least for now) — an announcement from Google this week may have marked the beginning of a new era in quantum computing…
Google's new quantum chip, called "Willow," overcomes a major problem in quantum computing.
(Image credit: Google Quantum AI)
Google scientists have unveiled a new quantum processor that, in five minutes, solved a puzzle that would have taken the world's best supercomputer a quadrillion times the age of the universe to crack.
The chip, called "Willow," overcomes a major problem in quantum computing that has plagued the field for the last 30 years. Quantum computers are inherently "noisy" as their units of computation, called qubits, have a tendency to exchange information with their environment. For most systems, the more qubits that are used, the more errors occur. But with Willow, the more qubits that are added, the fewer errors there are, paving the way for scaled-up quantum computers.
Our rocky satellite orbits Earth at an average distance of 238,855 miles (384,400 kilometers). However, getting there can take anywhere between eight hours and 4.5 months.
The Apollo missions took several days, with the Apollo 11 crew taking 109 hours and 42 minutes from liftoff to Neil Armstrong's famous "small step." But why are these timings so variable?
Human bones discovered in a house that burned down 5,700 years ago provide "CSI"-style clues about the deaths of seven people in prehistoric Ukraine.
The battered bones were discovered at a scorched settlement roughly 115 miles (185 km) south of Kyiv. But this was no ordinary house fire — archaeologists found that two of the people had suffered violent head injuries just before death, while an isolated skull fragment belonging to a third individual was placed above their bones nearly a century later.
"We can only speculate whether there was a connection between the fire and the act of deadly violence, i.e. killing the people in the house, leaving their corpses, and setting the house on fire," researchers wrote in the study.
The exceptionally preserved fossil of a species called Australopithecus afarensis, nicknamed Lucy, has transformed our understanding of humanity's tangled family tree.
(Image credit: Brigid Slinger)
Fifty years ago, paleoanthropologist Donald Johanson and his team unearthed a fossil skeleton in Ethiopia, nicknamed Lucy, belonging to a species called Australopithecus afarensis.
From a distance, she might have looked like a small child, standing on two legs at about 3.5 feet (1 meter) tall. Her last day was likely spent searching for food, climbing shrubby trees and looking over her shoulder for saber-toothed cats and hyenas. But little did she know that, 3.2 million years later, her skeleton would transform our understanding of humanity's tangled family tree.
Something for the weekend
If you're looking for something a little longer to read over the weekend, here are some of the best long reads, book excerpts and interviews published this week.
Chinese firm DEEP Robotics has released footage of its all-terrain security robot, "Lynx." The quadruped machine, with wheels instead of hands and feet, can drive, climb and perform acrobatics while mapping out treacherous outdoor terrain.
Promotional footage released by the company shows the Lynx model as it rolls at high speed on "two feet" down a wooded slope, scrambles up a 30-inch (80 centimeters) rock wall and drives down a 50-degree, uneven slope covered in rocks and shrubs.
Pandora is the trending news editor at Live Science. She is also a science presenter and previously worked as Senior Science and Health Reporter at Newsweek. Pandora holds a Biological Sciences degree from the University of Oxford, where she specialised in biochemistry and molecular biology.
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