Sentences with phrase «of planetary history»

Climate - change skeptics point out that the planet has warmed and cooled many times before, but the climate window that has allowed for human life is very narrow, even by the standards of planetary history.

Rock, in the right spot, is a record of planetary history, eras as long as millions of years flattened by the forces of geological time into strata with amplitudes of just inches, or just an inch, or even less.

Holocene is the formal name for the «wholly recent» epoch of planetary history that began at the end of the last ice age 11,700 years ago.

Detection of tremolite, a mineral created in the presence of water, could be used to ascertain how long any Venusian oceans lasted as a habitat for Earth - type life over the past 4.6 billion years of planetary history (more).

New research suggests that over millions of years of planetary history, birds and mammals have outperformed amphibians and reptiles at adapting to changing temperatures and shifting their habitats to more suitable locations.

Kauai's ancient rocks can reveal other pieces of planetary history, as well.

The stories that now control the course of planetary history are leading us to destruction.

Not exact matches

This quantification of the span of human history would modify the Platonic conception in the Timaeus, making the history of the world a homogeneous and indefinite continuum, a simple reflection of the eternal return of the interlocking planetary cycles, with their conjunctions and oppositions.

The history of science provides many examples of this combination of analogy and innovation in the creation of models which were useful in generating theories.4 The «Bohr model» of the atom, in which «planetary» electrons revolve in orbits around a central nucleus, resembles the solar system in certain of its dynamical properties; but the key assumption of quantum jumps between orbits had no classical parallel at all.

«A history of Venus is stored in the atmosphere,» says Larry Esposito, a planetary scientist at the University of Colorado in Boulder.

The all - sky infrared survey should also map out the history of light production by galaxies and — closer to home — the distribution of ices in embryonic planetary systems.

The new findings are observational evidence supporting the idea that icy bodies are also present in other planetary systems, and have survived throughout the history of the star's evolution.

This Gabonese biota raises questions about the history of the biosphere at a planetary scale.

That level of fascination made sense in the days before telescopes could observe details in planetary atmospheres, before space probes had explored Mars and bulldozed into a comet, and before we understood the history of asteroid and comet collisions, linking celestial bodies large and small.

Gliese 876 is a modest star, just one - third the mass of our sun and only 15 light - years away, but it has a history - making planetary system all its own.

Mars» volcanoes show evidence for activity over a larger time span than those on Earth, but their histories of magma production might be quite different,» said Jacob Bleacher, a planetary geologist at Goddard and a co-author on the study.

↵ † Present address: Earth and Planetary System Science, Department of Natural History Sciences, Hokkaido University, N10 W8, Sapporo 060 - 0810, Japan.

Korenaga is a co-investigator of the NASA «Alternative Earths» team, which is organized around the principle of understanding how Earth has maintained a persistent biosphere through most of its history, how the biosphere manifests in «biosignatures» on a planetary scale, and how reconstructing this history can inform the search for life within and beyond the solar system.

The planet's death could happen very early in a solar system's history, or it could happen billions of years later, says planetary scientist and co-author Rory Barnes of the University of Washington, Seattle.

Prevailing theories of solar system formation, Levison explains, hold that early in the system's history there were plenty of icy objects left over from planetary formation.

The results, published July 30 in Nature, provide insights into the moon's early history, its orbital evolution, and its current orientation in the sky, according to lead author Ian Garrick - Bethell, assistant professor of Earth and planetary sciences at UC Santa Cruz.

Unafraid of controversy in his role as director of the Hayden Planetarium at the American Museum of Natural History, Tyson insisted that the museum deny Pluto planetary status years before the scientific establishment caught up with the idea.

That timing, says planetary scientist Dave Stegman, a research fellow at the University of Melbourne in Australia, is «actually quite serendipitous — that's exactly the time in lunar history during which a dynamo could either be dying down or just starting to ramp up.»

SOFIA, an infrared telescope that rides in the back of a modified jumbo jet, holds appeal to both astronomers and planetary scientists, but its large operating expenses and long history of problems and delays had made it prime target for budget cutters.

Planetary scientists have discovered pieces of opal in a meteorite found in Antarctica, a result that demonstrates that meteorites delivered water ice to asteroids early in the history of the solar system.

After a few hours or weeks, depending on how super the supercomputer is, a thousand years of planetary nebula history is waiting in the computer's memory to be studied in detail.

Now, two new studies of Kuiper belt objects presented October 5 at a meeting of the American Astronomical Society's Division for Planetary Sciences in Pasadena, Calif., may reveal a crucial hole a prevailing model of the solar system's early history.

The Mars Exploration Program studies Mars as a planetary system in order to understand the formation and early evolution of Mars as a planet, the history of geological processes that have shaped Mars through time, the potential for Mars to have hosted life, and the future exploration of Mars by humans.

Scientists record the size and number of impact craters — and how eroded they are — to determine the ages and histories of different planetary surfaces.

This combination of aerospace history and planetary science provides the entire picture of the full life cycle of these missions - not just their most successful moments.

«No government in the world today has explicitly assigned the responsibility for planetary protection to any of its agencies,» ASE member Rusty Schweickart, who flew on the Apollo 9 mission in 1969, said Friday during a panel discussion at the American Museum of Natural History in New York City.

The objective of the MAVEN mission EPO program is to engage multiple audiences in the quest to understand Mars» long - term atmospheric losses, giving insight into the history of Mars» atmosphere and climate, liquid water, and planetary habitability.

Lloyd, J.P., Lunine, J.I., Mamajek, E., Spiegel, D.S., Covey, K.R., Shkolnik, E.L., Walkowicz, L., Chavez, M., Bertone, E., & Olmedo Aguilar, J.M., Targeting Young Stars with Kepler: Planet Formation, Migration Mechanisms and the Early History of Planetary Systems, eprint arXiv: 1309 - 1520, 2013

The objective of the MAVEN mission E / PO program is to engage multiple audiences in the quest to understand Mars» long - term atmospheric losses, giving insight into the history of Mars» atmosphere and climate, liquid water, and planetary habitability.

Cornerstone Evaluation Associates LLC is the external research firm charged with carrying out the evaluation activities necessary to determine the effectiveness and impact of MAVEN's Education and Public Outreach (E / PO) effort and its success in achieving its overall goal to «engage multiple audiences in the quest to understand Mars» long - term atmospheric losses, giving insight into the history of Mars» atmosphere and climate, liquid water, and planetary habitability.»

The goal for MAVEN's informal education program is that informal science educators are equipped with the necessary tools to engage Native American youth, girls, or the public in understanding relevant aspects of MAVEN and the history of Mars» atmosphere and climate, liquid water, and planetary habitability.

In a fascinating set of projects we will look at the smallest scales and back in time, probing the mineralogy and composition of micron - sized grains in ancient meteorites using the most sophisticated microscopic techniques, to explore the history of volatiles and organics in planetary building blocks at the time when the Solar System was young.

If the history of planetary exploration is any indication, then New Horizons is bound to provide the next paradigm shift in our understanding of the many different and fascinating worlds within our planetary family and possibly beyond as well.

They received the prize «for discovering and characterizing the Kuiper Belt and its largest members, work that led to a major advance in the understanding of the history of our planetary system.»

We explore these mechanisms for cases of both magnetized and unmagnetized planets, in order to characterize the potential influence on the rotational history of the star, as well as the planetary orbital migration.

«The history of planetary science shows us that we develop theories and models, and nature does not read our papers,» McKay said.

The Cassini Mission at Saturn has been one of the most exciting and successful in the history of planetary science.

In addition to providing a new perspective into the history of Earth, the discovery is also expected to provide significant insights into the study of planetary habitability.

Stephen G. Brush, A History of Modern Planetary Physics, Vol.

Data and analysis could tell planetary scientists the history of climate change on the Red Planet and provide further information on the history of planetary habitability.

THE 2014 KAVLI PRIZE IN ASTROPHYSICS is awarded to Michael Edwards Brown, David Jewitt, and Jane Luu «for discovering and characterizing the Kuiper Belt and its largest members, work that led to a major advance in the understanding of the history of our planetary system.»

«for discovering and characterizing the Kuiper Belt and its largest members, work that led to a major advance in the understanding of the history of our planetary system»

With this exceptional leap in performance, new domains in infrared astronomy will become accessible, allowing us, for example, to unravel definitively galaxy evolution and metal production over cosmic time, to study dust formation and evolution from very early epochs onwards, and to trace the formation history of planetary systems.

Students enrolled in this course will gain a strong foundation in the history and principles of planetary herbal medicine.

Explore the planetary ruins and encounter other surviving factions that have each evolved in their own way, as you unravel the history of a shattered civilization.