Flying qubits make for a highly resilient quantum memory
Oxygen levels were only 0.1 percent of today's levels for roughly billion years before rise of animals
(Phys.org) —Geologists are letting the air out of a nagging mystery about the development of animal life on Earth.
Hubble sees 'ghost light' from dead galaxies
(Phys.org) —NASA's Hubble Space Telescope has picked up the faint, ghostly glow of stars ejected from ancient galaxies that were gravitationally ripped apart several billion years ago. The mayhem happened ...
Cassini sees sunny seas on Titan
(Phys.org) —As it soared past Saturn's large moon Titan recently, NASA's Cassini spacecraft caught a glimpse of bright sunlight reflecting off hydrocarbon seas.
Lord of the microrings: Team reports breakthrough in microring laser cavities
A significant breakthrough in laser technology has been reported by the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley. ...
New study finds oceans arrived early to Earth
Earth is known as the Blue Planet because of its oceans, which cover more than 70 percent of the planet's surface and are home to the world's greatest diversity of life. While water is essential for life ...
Science casts light on sex in the orchard
Persimmons are among the small club of plants with separate sexes—individual trees are either male or female. Now scientists at the University of California, Davis, and Kyoto University in Japan have discovered ...
Identifying the source of stem cells
When most animals begin life, cells immediately begin accepting assignments to become a head, tail or a vital organ. However, mammals, including humans, are special. The cells of mammalian embryos get to ...
Asteroid Apophis could experience landslides when it passes near Earth
Many Interacting Worlds theory: Scientists propose existence and interaction of parallel worlds
Griffith University academics are challenging the foundations of quantum science with a radical new theory based on the existence of, and interactions between, parallel universes.
Calculating encryption schemes' theoretical security guarantees eases comparison, improvement
Most modern cryptographic schemes rely on computational complexity for their security. In principle, they can be cracked, but that would take a prohibitively long time, even with enormous computational resources.
Use asteroids as stepping stones to Mars: Richard Binzel on NASA's asteroid redirect mission
By the end of this decade, NASA hopes to lasso a space rock: The space agency is actively pursuing proposals for its Asteroid Redirect Mission (ARM)—a mission that aims to identify, capture, and redirect ...