News tagged with early
New Data Suggests We Don’t Live in a Void, and Supports Dark Energy
Jan 28, 2009 |
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(PhysOrg.com) -- An alternative proposal to dark energy in which the Earth sits near the center of a large void is undergoing scrutiny, and the results show that void models fit poorly with observed data. ...
'Calm before storm' may foreshadow climatic tipping point
Space & Earth / Earth Sciences
Sep 17, 2008 |
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(PhysOrg.com) -- Abrupt climate change has occurred on earth many times over the past millions of years. Climate scientists hypothesize that these sharp transitions may be caused when the earth system reaches ...
Precise picture of early Universe supports 'dark matter' theory
Nov 02, 2009 |
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A detailed picture of the seeds of structures in the universe has been unveiled by an international team co-led by a Cardiff University scientist.
Ancient ocean chemistry: Effects of biological oxygen production 100 million years before it accumulated in atmosphere
Space & Earth / Earth Sciences
Oct 29, 2009 |
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(PhysOrg.com) -- Scientists widely accept that around 2.4 billion years ago, the Earth's atmosphere underwent a dramatic change when oxygen levels rose sharply. Called the "Great Oxidation Event" (GOE), the ...
Banded rocks reveal early Earth conditions, changes
Space & Earth / Earth Sciences
Oct 11, 2009 |
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(PhysOrg.com) -- The strikingly banded rocks scattered across the upper Midwest and elsewhere throughout the world are actually ambassadors from the past, offering clues to the environment of the early Earth ...
Planck first light yields promising results (w/ Video)
Space & Earth / Space Exploration
Sep 17, 2009 |
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(PhysOrg.com) -- Planck, ESA's mission to study the early Universe, started surveying the sky regularly from its vantage point at L2 on 13 August. The instruments of ESA's 'time machine' were fine-tuned for ...
Archaeologists discover oldest-known fiber materials used by early humans
Other Sciences / Archaeology & Fossils
Sep 10, 2009 |
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(PhysOrg.com) -- A team of archaeologists and paleobiologists has discovered flax fibers that are more than 34,000 years old, making them the oldest fibers known to have been used by humans. The fibers, discovered ...
Scientists propose new hypothesis on the origin of life
Space & Earth / Earth Sciences
Sep 04, 2009 |
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The Miller-Urey experiment, conducted by chemists Stanley Miller and Harold Urey in 1953, is the classic experiment on the origin of life. It established that the early Earth atmosphere, as they pictured it, ...
Hand axes in Europe nearly a million years old: study
Other Sciences / Archaeology & Fossils
Sep 02, 2009 |
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Early humans used two-sided stone axes in Europe up to 900,000 years ago, far earlier than previously thought, according to a study released Wednesday.
Giant Galaxy Hosts the Most Distant Supermassive Black Hole
Sep 02, 2009 |
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(PhysOrg.com) -- University of Hawaii (UH) astronomer Dr. Tomotsugu Goto and colleagues have discovered a giant galaxy surrounding the most distant supermassive black hole ever found. The galaxy, so distant ...
First black holes born starving (w/ Video)
Aug 10, 2009 |
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The first black holes in the universe had dramatic effects on their surroundings despite the fact that they were small and grew very slowly, according to recent supercomputer simulations carried out by astrophysicists ...
Astronomers Find Hyperactive Galaxies in the Early Universe
Aug 05, 2009 |
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(PhysOrg.com) -- Looking almost 11 billion years into the past, astronomers have measured the motions of stars for the first time in a very distant galaxy and clocked speeds upwards of one million miles per ...
Galaxy Zoo Hunters Help Astronomers Discover Rare 'Green Pea' Galaxies
Jul 27, 2009 |
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A team of astronomers has discovered a group of rare galaxies called the "Green Peas" with the help of citizen scientists working through an online project called Galaxy Zoo. The finding could lend unique ...
Better Supernovae Measurements Aim To Improve Understanding of Dark Energy
May 22, 2009 |
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(PhysOrg.com) -- A new technique for measuring the distances to supernovae more accurately than ever before has been developed by a team of scientists from Yale University, Lawrence Berkeley National Laboratory ...
Star-Forming Backbone of a Massive Structure in the Early Universe Photographed
May 20, 2009 |
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(PhysOrg.com) -- Using a special camera known as AzTEC developed by a research team led by Grant Wilson, astronomy professor at the University of Massachusetts Amherst, an international research group has ...
