Possibility of cloning quantum information from the past
Popular television shows such as "Doctor Who" have brought the idea of time travel into the vernacular of popular culture. But problem of time travel is even more complicated than one might think. Scientists have now shown that it would theoretically be possible for time travelers to copy quantum data from the past.
Tiny drops of hot quark soup -- how small can they be?
New analyses of deuteron-gold collisions indicate that collisions between gold ions and much smaller deuterons, designed as control experiments, may be serving up miniscule drops of hot quark-gluon plasma.
Laser instrument on NASA Mars rover tops 100,000 zaps
NASA's Curiosity Mars rover has passed the milestone of 100,000 shots fired by its laser. It uses the laser as one way to check which chemical elements are in rocks and soils.
Intricacy of Comet Lovejoy's tail captured
An international team of astronomers has captured an image of the intricate flow of Comet Lovejoy's ion tail.
NASA Goddard planetary instruments score a hat trick
Planetary instruments from NASA's Goddard Space Flight Center in Greenbelt, Md., hit the trifecta on Dec. 4, running three experiments of the same kind at different places in space.
'Spinning trap' developed to measure electron roundness
Researchers have developed a method of spinning electric and magnetic fields around trapped molecular ions to measure whether the ions' tiny electrons are truly round -- research with major implications for future scientific understanding of the universe.
You can't get entangled without a wormhole: Physicist finds entanglement instantly gives rise to a wormhole
Quantum entanglement is one of the more bizarre theories to come out of the study of quantum mechanics -- so strange, in fact, that Albert Einstein famously referred to it as "spooky action at a distance."
Astronomers discover planet that shouldn't be there
Astronomers have discovered the most distantly orbiting planet found to date around a single, sun-like star. Weighing in at 11 times Jupiter's mass and orbiting its star at 650 times the average Earth-Sun distance, planet HD 106906 b is unlike anything in our own Solar System and defies current planet formation theories.
Glimpsing the infrastructure of a gamma-ray burst jet
A new study using observations from a novel instrument provides the best look to date at magnetic fields at the heart of gamma-ray bursts, the most energetic explosions in the universe. An international team of astronomers has glimpsed the infrastructure of a burst's high-speed jet.
Fledgling supernova remnant reveals neutron star's secrets
Astronomers have identified the glowing wreck of a star that exploded a mere 2,500 years ago — the blink of an eye in astronomical terms.
NASA's Cassini spacecraft obtains best views of Saturn hexagon
NASA's Cassini spacecraft has obtained the highest-resolution movie yet of a unique six-sided jet stream, known as the hexagon, around Saturn's north pole.
Mysteries of Earth's radiation belts uncovered by NASA twin spacecraft
Just over a year since launch, NASA's Van Allen Probes mission continues to unravel longstanding mysteries of Earth's high-energy radiation belts that encircle our planet and pose hazards to orbiting satellites and astronauts.
Can iPads help students learn science? Yes, study shows
A new study shows that students grasp the unimaginable emptiness of space more effectively when they use iPads to explore 3-D simulations of the universe, compared to traditional classroom instruction.
Explosive growth of young star
A star is formed when a large cloud of gas and dust condenses and eventually becomes so dense that it collapses into a ball of gas, where the pressure heats the matter, creating a glowing gas ball -- a star is born. New research shows that a young, newly formed star in the Milky Way had such an explosive growth, that it was initially about 100 times brighter than it is now.
Space tool for lunar exploration
Following the launch of Chang’e-3 lunar probe in Xichang Satellite Launch Centre, the Camera Pointing System is now getting closer for landing on the moon’s surface.
'Spooky action' builds a wormhole between 'entangled' quantum particles
New research indicates a phenomenon known as "quantum entanglement" might be intrinsically linked with wormholes, hypothetical features of space-time that could link one part of the universe with another.
Ocean currents shape Jupiter-moon Europa's icy shell in ways critical for potential habitats
In a finding of relevance to the search for life in our solar system, researchers have shown the subsurface ocean on Jupiter's moon Europa may have deep currents and circulation patterns with heat and energy transfers capable of sustaining biological life. The findings are based on numerical models accounting for the formation of the chaos terrains, one of Europa's most prominent surface features.
Hubble traces subtle signals of water on hazy worlds
Using the powerful eye of NASA's Hubble Space Telescope, scientists have found faint signatures of water in the atmospheres of five distant planets. The presence of atmospheric water was reported previously on a few exoplanets orbiting stars beyond our solar system, but this is the first study to conclusively measure and compare the profiles and intensities of these signatures on multiple worlds.
NASA investigating the life of Comet ISON
After several days of continued observations, scientists continue to work to determine and to understand the fate of Comet ISON: There's no doubt that the comet shrank in size considerably as it rounded the sun and there's no doubt that something made it out on the other side to shoot back into space.
Most detailed catalog of galaxies traces evolution of the universe during last 10,000 million years
Astronomers have now identified and classified more than half a million galaxies, after seven years of close observation of the universe.
Comet ISON may have survived
Continuing a history of surprising behavior, material from Comet ISON appeared on the other side of the sun on the evening on Nov. 28, 2013, despite not having been seen in observations during its closest approach to the sun.
Mystery of neutron stars heats up: Previously unknown layers where rapid neutrino cooling occurs
Until now, scientists were pretty sure they knew how the surface of a neutron star -- a super dense star that forms when a large star explodes and its core collapses into itself -- can heat itself up. However, researchers rethinking that.
Do black holes come in size medium?
Black holes can be petite, with masses only about 10 times that of our sun -- or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is busy scrutinizing a class of black holes that may fall into the proposed medium-sized category.
Telescope to track space junk using youth radio station
A combination of pop songs, talkback radio and cutting-edge science has enabled Australian astronomers to identify a way to prevent catastrophic, multi-billion dollar space junk collisions, a new study has revealed.
Scientists seek other scientists for cosmology problem
How do you measure something that is invisible? It's a challenging task, but astronomers have made progress on one front: the study of dark matter and dark energy, two of the most mysterious substances in our cosmos. Dark matter is intermixed with normal matter, but it gives off no light, making it impossible to see. Dark energy is even more slippery, yet scientists think it works against gravity to pull our universe apart at the seams. Now for the third time, an innovative competition has begun again with the goal of finding better tools for probing dark matter and dark energy.More on ScienceDaily