Category Archives: Astrophysics

Understanding the Big Bang Singularity

If you want to understand the planet Earth, then why not go back to the beginning of the Universe? The big bang is an event that we do not understand. It is thought to have happened about 13.75 billion years ago. What occurred, as we understand it, is mind blowing. Continue reading

Posted in Astrophysics, Dynamical Systems | Leave a comment

KAM Theory and Celestial Mechanics

Is the Earth’s orbit stable? Will the Moon always point the same face to our planet? Will some asteroid collide with the Earth? Continue reading

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DIMACS/CCICADA Collaboration on REU and Other Sustainability Projects

The Center for Discrete Mathematics and Theoretical Computer Science (DIMACS) and the Command Control Interoperability Center for Advanced Data Analysis (CCICADA), both based at Rutgers University, have collaborated on some recent activities to enhance the summer experience for several undergraduate students participating in the DIMACS/CCICADA Research Experiences for Undergraduates (REU) program. DIMACS and CCICADA recently co-hosted a workshop on Science and Technology Innovations in Hurricane Sandy Research. Continue reading

Posted in Astrophysics, Atmosphere, Biodiversity, Biogeochemistry, Biology, Biosphere, Carbon Cycle, Climate, Climate Change, Climate Modeling, Climate System, Complex Systems, Computational Science, Conference, Conference Announcement, Conference Report, Cryosphere, Data, Data Assimilation, Data Visualization, Dimension Reduction, Disease Modeling, Dynamical Systems, Ecology, Economics, Energy, Epidemiology, Evolution, Extreme Events, Finance, General, Geophysics, Imaging, Inverse Problems, Machine Learning, Mathematics, Meteorology, Natural Disasters, Networks, Ocean, Optimization, Paleoclimate, Patterns, Political Systems, Probability, Public Event, Public Health, Renewable Energy, Resource Management, Risk Analysis, Social Systems, Statistics, Sustainability, Sustainable Development, Tipping Phenomena, Transportation, Uncertainty Quantification, Weather, Workshop Announcement, Workshop Report | Leave a comment

Earth’s Climate at the Age of the Dinosaurs

Is it possible to compute the past climate of the Earth at the time of dinosaurs? Continue reading

Posted in Astrophysics, Mathematics, Paleoclimate | Leave a comment

Low Fuel Spacecraft Trajectories to the Moon

There is widespread interest in finding and designing spacecraft trajectories to the Moon, Mars, other planets, or other celestial bodies (comets, asteroids), which require as little fuel as possible. Continue reading

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Why is celestial mechanics part of MPE2013?

Since the beginning of MPE2013, I have met people who were surprised when I classified celestial mechanics as a topic that would fit under Mathematics of Planet Earth. But part of celestial mechanics is concerned with planetary motion, and Earth is a planet. Continue reading

Posted in Astrophysics, General, Mathematics | 2 Comments

Asteroids

The close approach of the asteroid that we have all read about in the newspapers represents something of a coincidence for me as I prepare for the data assimilation workshop in Banff this coming week. Continue reading

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