President Barack Obama abruptly ended his golf outing and sped in his motorcade to his compound Monday after he learned a friend's child was injured while playing on the beach.
Writing a will is an unusual act for a couple in their mid-30s, but Karl and Marisa Heiss did not do ordinary things.
You can see the halfway point from here. The fast-moving 2009 season is getting down to the weeks where you can start looking at the standings.
Neither government nor industry has accurate information on the availability of minerals and other materials that may become critical for uses ranging from everyday household products to national defense, it was reported Friday.
Astronomers are scratching their heads over what produced SN 2006gy, which is two to three times brighter than the previous record holder for the brightest supernova (Illustration: NASA/CXC/M Weiss)
The galaxy cluster Abell 520 has a massive dark core filled with hot gas (red) and dark matter (blue) but empty of bright galaxies (yellow and orange), suggesting that when the original clusters collided, their dark matter was stripped out (Image: X-ray: NASA/CXC/UVic./A.Mahdavi et al. Optical/Lensing: CFHT/UVic./A.Mahdavi et al.)
Jets emerge from the vicinity of a black hole or neutron star, which orbits a massive regular star in the LS 5039 system. Some of the gamma rays produced in the system are transformed into particles of matter and antimatter through collisions with ultraviolet photons (Illustration: HESS Collaboration/R Hynes)
The large bright glow in this simulation represents the colossal halo of dark matter surrounding the Milky Way as it was about 3.4 billion years ago. Smaller clumps of dark matter are also visible because they do not merge into larger structures. Curiously, many of these small clumps do not seed dwarf galaxies. The image shows a region of space about 2.6 million light years across (Illustration: J Diemand/M Kuhlen/P Madau/UCSC)
Matter can stably orbit closer to a spinning black hole, right, than a non-spinning one, left (Illustration: NASA/CXC/M Weiss)
Astronomers say they have found the best evidence to date for "dark matter," that mysterious invisible substance that is believed to account for the bulk of the universe's mass.
Computer simulations showed that dark matter should be densest at the centres of galaxies, like this one, but observations show it is constant over thousands of light years - supernovae could be to blame (Image: NASA/Hubble Heritage/AURA/STScI)
As Kempf explains, the underlying mathematical structure of information theory in this framework is sampling theory - that is, samples taken at a generic discrete set of points can be used to reconstruct the shape of the information (or spacetime) everywhere down to a specific cu …
Within a decade scientists could be able to detect the merger of tens of pairs of black holes every year, according to a team of astronomers at the University of Bonn's Argelander-Institut fuer Astronomie... More Articles
Astronomers have used a high-energy burst of light from a distant galaxy to test the fabric of space and time. The work is the best test yet of attempts to create a 'theory of everything'. More Articles
As if the universe weren't strange enough, scientists have recently discovered that entire galaxy clusters—the largest known structures in the universe, consisting of thousands of galaxies—are moving toward the same area.
"The pattern that the data reveal is extremely odd. It's like finding a zoo of animals of all ages and sizes miraculously having identical, say, weight in their backbones or something.
...a team of German scientists in Hamburg say they may have stumbled onto the discovery of transparent aluminium, according to a report in the scientific journal Nature Physics. More Articles
Now Mallinckrodt Professor of Physics and of Applied Physics, Hau has done it again. She and her team made a light pulse disappear from one cold cloud then retrieved it from another cloud nearby. In the process, light was converted into matter then back into light.
In the future you won't use computers to design a car, the car will form from billions of tiny computers that arrange themselves into anything you want. The physical and computational world will merge. Hope you're ready. More Articles
While the effort to detect gravitational waves is ongoing, the researchers have now used the LIGO apparatus to observe the oscillations of a 2.7 kg pendulum mode at a level close to its quantum ground state.
grains of sand present with possible 5th state of matter
The nearby, well-known and very bright star may soon explode in a supernova, according to data released by U.C. Berkeley researchers Tuesday. More Articles
For neutrinos created recently, the ranges they can exist in are very, very small. But over the roughly 13.7-billion-year lifetime of the cosmos, "relic" neutrinos have been stretched out by the expansion of the universe, enlarging the range in which each neutrino can exist.
Previous experiments have entangled the internal properties of particles, such as spin states, but this is the first time scientists have entangled the particles' pattern of motion. More Articles
Cosmologists don't usually take their lead from the animal kingdom. But a model that postulates the existence of a 'chameleon' particle — which would change its mass depending on its surroundings — is gaining attention. More Articles
Select a location or a group of objects - do it first in your head.
Whatever dark energy is, explanations for it have less wiggle room following a Hubble Space Telescope observation that has refined the measurement of the universe's present expansion rate to a precision where the error is smaller than five percent. More Articles
Research by a theoretical physicist at Indiana University shows that the crusts of neutron stars are 10 billion times stronger than steel or any other of the earth's strongest metal alloys. More Articles
Like some kind of massive cosmic toilet bowl, the multitude of galaxies that populate the known Universe are swirling inexplicably toward a tiny 20-degree plane of deep space. More Articles
U.S. Navy researchers are asking two U.S.
Hubble was not the first space telescope but it is by far the most sophisticated, providing earthlings with unprecedented detail and spectacular views of their universe.
feel it everywhere around in constant motion caught in a crossfire of involuntary movement causing lights in the sky from beginning to end through out all of time we are all made up of the same electron in constant motion through time and space involuntarily creating a copy to ma …
A Duke University professor and his graduate student have discovered a universal principle that unites the curious interplay of light and shadow on the surface of your morning coffee with the way gravity magnifies and distorts light from distant galaxies. More Articles
For the first time, superstring theorists can point to a place where their formulas help other physicists understand something they can see in their experiments.
Ever wonder if you could, in fact ,pass through a shut door, much the same as you'vee seen a ghost do in the movies? Its not completely absurd or forbidden by physics.
Large Hadron Collider? Meh. Good Old Fermilab in Illinois still finding all the cool particles.