Featured Story
How Galaxies Form: Dark Matter Theory Conflict Resolved
For more than two decades, the cold dark matter theory has been used by cosmologists to explain how the smooth universe born in the big bang more than 13 billion years ago evolved into the filamentary, galaxy-rich cosmic web that we see today.
There’s been just one problem: the theory suggested most galaxies should have far more stars and dark matter at their cores than they actually do. The problem is most pronounced for dwarf galaxies, the most common galaxies in our own celestial neighborhood. Each contains less than 1 percent of the stars found in large galaxies such as the Milky Way.
Now an international research team, led by a University of Washington astronomer, reports Jan. 14 in Nature that it resolved the problem using millions of hours on supercomputers to run simulations of galaxy formation (1 million hours is more than 100 years). The simulations produced dwarf galaxies very much like those observed today by satellites and large telescopes around the world.
Most Popular
- Harvard Biologist Admits: We Know Nothing About Brain Evolution
- The Beauty and Mystery of the Planet Venus
- Optical Illusions; Are They of Scientific Value or Just Ephemeral Entertainment?
- How Newton's Telescope Changed the World
- Where Do Those Cold-blooded Animals Go in Winter?
- Tabloid Science: Attack of the Maneating Catfish
- Science Fair Projects - What's In It For Me?
- Nuclear Power and Declining Uranium Stocks
- The Mythos of the Large Hadron Collider
- A History of Magnets and Their Many Uses
Top Rated
- The Beauty and Mystery of the Planet Venus
- A History of Magnets and Their Many Uses
- Why should the U.S. Continue to Pursue the Exploration of Space
- Science Fair Projects – What’s In It For Me?
- Facts About Solar Energy – Little Known, Yet Interesting
- Definitions and Dangers Of Genetically Modified Organisms
- Effective Approaches to Lifelong Learning
- To Predict Global Climate Change Look to the Sun
- The Jewel of the Sea
- Boolean Algebra
Latest Science News
- Nuclear Tidal Wave, the tidal wave on the nuclei’s surface
Nuclear Tidal Wave, the tidal wave on the nuclei’s surface. Dr. Yingqiong gu first time elaborated on the surface of the nucleus type tidal …
- Thinking about electric vehicles
Electric vehicles reduce noise and local air pollution, such as nitrogen oxides, particulate matter and ground-level ozone, but do they simply relo…
- Nearsightedness increasing in the United States
Researchers tapped into a wide-ranging health survey to rate vision in the population in the early 1970s and roughly 30 years later. They compared …
- Understanding Ocean Climate
High-resolution computer simulations are helping to describe the inflow of North Atlantic water to the Arctic Ocean and how this influences ocean c…
- Syntax in Our Primate Cousins
Monkeys of a certain forest-dwelling species called Campbell’s monkeys emit six types of alert calls. The primates combine these calls into l…
- First Known Binary Star Is Discovered to Be a Triplet, Quadruplet, Quintupl…
Alcor and Mizar, were the first binary stars — a pair of stars that orbit each other — ever known. Now, astronomers have made the surpr…
- Absorbing Hydrogen Fluoride Gas to Enhance Crystal Growth
Scientists have developed a method to control the buildup of hydrogen fluoride gas during the growth of precision crystals needed for applications …
- Glacial Rebound: 10,000-Year Study of Strata Compaction and Sea-Level Rise …
Glacial rebound — the rise or fall of land masses that were depressed by the huge weight of ice sheets during the last glacial period —…
- With Amino Acid Diet, Mice Improve After Brain Injury
Neurology researchers have shown that feeding amino acids to brain-injured mice restores their cognitive abilities and may set the stage for the fi…
- Older Dental Fillings Contain Form of Mercury Unlikely to Be Toxic, Study F…
A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic …
[ Submit News ] [ See More ]
Latest Posts
How Galaxies Form: Dark Matter Theory Conflict ResolvedFor more than two decades, the cold dark matter theory has been used by cosmologists to explain how the smooth universe born in the big bang more than 13 billion... Read more »
Lowell Observatory Participates in Heritage Preservation’s Conservation Assessment ProgramFlagstaff, Ariz. — Lowell Observatory and Heritage Preservation are pleased to announce that the Observatory has been chosen to participate in the 2010 Conservation... Read more »
Women Have a Better Sense of TouchPeople who have smaller fingers have a finer sense of touch, according to new research in the Dec. 16 issue of The Journal of Neuroscience. This finding explains... Read more »
Skull Bone May Hold the Key to Tackling OsteoporosisScientists at Queen Mary, University of London have uncovered fundamental differences between the bone which makes up the skull and the bones in our limbs, which... Read more »
Deepest Explosive Eruption on the Sea FloorOceanographers using the remotely operated vehicle (ROV) Jason discovered and recorded the first video and still images of a deep-sea volcano actively erupting molten... Read more »
First Light Instrument for the Discovery Channel Telescope to Accelerate Outer Solar System ResearchWhen Lowell Observatory’s 4.2-meter Discovery Channel Telescope delivers its first science results in a few years, some of those results are expected to help astronomers... Read more »
New Goggles Light the Night for LifeFlightVanderbilt LifeFlight is now using technology once reserved for military operations or secret spy missions. With the ability to enhance light 10,000 times, the air... Read more »
Yellowstone’s Magma Body Bigger than Previously ThoughtThe most detailed seismic images yet published of the plumbing that feeds the Yellowstone supervolcano shows a plume of hot and molten rock rising at an angle from... Read more »
Are Angry Women More Like Men?“Why is it that men can be bastards and women must wear pearls and smile?” wrote author Lynn Hecht Schafran. The answer, according to an article in the... Read more »
Suzaku Catches Retreat of a Black Hole’s DiskStudies of one of the galaxy’s most active black-hole binaries reveal a dramatic change that will help scientists better understand how these systems expel... Read more »
Bacteria Engineered to Turn Carbon Dioxide Into Liquid FuelGlobal climate change has prompted efforts to drastically reduce emissions of carbon dioxide, a greenhouse gas produced by burning fossil fuels. In a new approach,... Read more »
New Inherited Eye Disease DiscoveredUniversity of Iowa researchers have found the existence of a new, rare inherited retinal disease. Now the search is on to find the genetic cause, which investigators... Read more »
Sponsor
Latest Blog Posts
Latest Science News
- Nuclear Tidal Wave, the tidal wave on the nuclei’s surface
- Thinking about electric vehicles
- Nearsightedness increasing in the United States
- Understanding Ocean Climate
- Syntax in Our Primate Cousins
[ Submit News ] [ See More ]
Connect With Us
 |
Twitter Updates Follow @sciseek on Twitter for all the latest news and updates from SciSeek.com. |
 |
Facebook Become a SciSeek.com Fan and get your news and updates without ever leaving Facebook. |
