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Interstellar Travelers of the Future May be Helped by MU Physicist’s Calculations

By Guest PostOctober 12, 2012Scienceastrophysicists, bill clinton, expansion, future, gravity, heat, human expansion, interstellar travel, light, mechanical explanation, missouri, movement, newtonian law, photon, physics, pioneer spacecraft, puzzle, radio wave, research project, researcher, sergei kopeikin, Space, spaceship symposium, star system, theory, time, universe, university

University of Missouri’s Sergei Kopeikin may have solved the Pioneer anomaly

COLUMBIA, Mo. – Former President Bill Clinton recently expressed his support for interstellar travel at the 100 Year Spaceship Symposium, an international event advocating for human expansion into other star systems. Interstellar travel will depend upon extremely precise measurements of every factor involved in the mission. The knowledge of those factors may be improved by the solution a University of Missouri researcher found to a puzzle that has stumped astrophysicists for decades.

“The Pioneer spacecraft, two probes launched into space in the early 70s, seemed to violate the Newtonian law of gravity by decelerating anomalously as they traveled, but there was nothing in physics to explain why this happened,” said Sergei Kopeikin, professor of physics and astronomy in MU’s College of Arts and Science. “My study suggests that this so-called Pioneer anomaly was not anything strange. The confusion can be explained by the effect of the expansion of the universe on the movement of photons that make up light and radio waves.” (more…)

Climate Change to Cripple Southwestern Forests

By Guest PostOctober 1, 2012Environmentancient, arizona, atmospheric evaporative, chandana gangodagamage, climate change, climate data, climate record, climate scenario, climate trend, climatological variable, colorado, computer model, craig allen, cultural center, daniel griffin, distribution, drought tolerant, fire, forest, forest drought, future, geological survey, greenhouse gas, growth record, las conchas, marcia mcnutt, megadrought, mesa verde, michael cai, nate mcdowell, new mexico, park williams, pinon pines, prediction, projection, pueblo indians, puebloan, regional climate, regional ecosystem, scientist, southwestern, southwestern forest, species, stress index, thomas swetnam, tree killing, tree mortality, tree ring, trees, united states, university, US, usgs, wildfire, winter precipitation

Trees Face Rising Drought Stress and Mortality as Climate Warms

LOS ALAMOS, N.M. — Combine the tree-ring growth record with historical information, climate records, and computer-model projections of future climate trends, and you get a grim picture for the future of trees in the southwestern United States. That’s the word from a team of scientists from Los Alamos National Laboratory, the U.S. Geological Survey, University of Arizona, and other partner organizations.

The research, published in Nature Climate Change this week, concluded that if the Southwest is warmer and drier in the near future, widespread tree mortality likely will cause substantial changes in forest and species distributions. (more…)

Researchers Share Surprising Discovery about Coral Reef Ecology

By Guest PostSeptember 4, 2012Environment, Natureacidification, algae, algal symbionts, american samoa, climate change, coastal development, coral reef, coral species, coral tissue, david garrison, DNA, ecology, endosymbionts, environment disturbance, environmental change, environmental stress, french polynesia, functional ecosystem, future, generalists, global stressors, hawaii, himb, hollie putnam, host, manoa, moorea, nsf, ocean acidification, photosynthesis, pollution, prediction, reef corals, ruth gates, skeletal growth, skeletons, soest, stresss, symbiodinium, taiwan, temperatures, theory, threat, tissue sample

Researchers at the UH Manoa School of Ocean and Earth Science and Technology (SOEST) made a discovery that challenges a major theory in the field of coral reef ecology.

The general assumption has been that the more flexible corals are, regarding which species of single-celled algae (Symbiodinium) they host in coral tissues, the greater ability corals will have to survive environmental stress. In their paper published August 29, 2012, however, scientists at the Hawaii Institute of Marine Biology (HIMB) at SOEST and colleagues documented that the more flexible corals are, the more sensitive to environment disturbances they are. (more…)

Back to the Future: A New Science for a Changing Planet

By Guest PostSeptember 1, 2012Environment, Scienceaníbal pauchard, back, baseball game, changing planet, charles darwin, climate change, curiosity, data, ecologist, ecosystem, environmental challenge, factor, future, geographical distribution, global phenomenon, global scale, hopkins marine station, hypothesis, kristin wisneski, mars rover, monterey bay, myriad, new science, observation and ecology, organism, outdoor classroom, rafe sagarin, record, shift, species, stamp collecting, stanford university, Technology, temperature, traditional classroom, variable, water temperature, world

In a world that is changing on a global scale and faster than ever before, science should rediscover its roots of observing the natural world unimpeded by the strict protocols of experimental manipulations, UA ecologist Rafe Sagarin and co-author Aníbal Pauchard suggest in their book, “Observation and Ecology.”

Mars rover Curiosity is doing it. School children strolling through the woods with binoculars are doing it. Charles Darwin was doing it. Observing the natural world around them was how the early naturalists started what would later become known as ecology – the science of how living things interact, depend on each other and how their habitats and communities change over time.

In their book, “Observation and Ecology,” ecologists Rafe Sagarin and Aníbal Pauchard make the case that if scientists are to tackle the enormously complex problems the world is facing, researchers and funding agencies have to leave their comfort zone of well-controlled experimental manipulations. (more…)

Tag Archives: future

Interstellar Travelers of the Future May be Helped by MU Physicist’s Calculations

Climate Change to Cripple Southwestern Forests

Researchers Share Surprising Discovery about Coral Reef Ecology

Back to the Future: A New Science for a Changing Planet