Cosmology X Data Science

The Cosmology X Data Science group develops novel algorithms and ways of thinking to apply to datasets to answer fundamental questions about the cosmos.

Astronomy is entering a new era. With ground- and space-based telescopes equipped with increasingly more sensitive cameras and instruments, enabling surveys, such as Kepler, Gaia and DES, SDSS, DESI, LSST, Euclid and WFIRST, that are discovering thousands of planets and millions of stars and galaxies, we are able to seek answers to fundamental questions about the origin and evolution of the universe. Cosmology X Data Science is a group that looks into all these datasets, develop new methods and ideas to answer fundamental questions of our cosmos.

Research Highlights

February 15, 2019

From Dark Matter to Galaxies with Convolutional Networks

X. Zhang, Y. Wang, W. Zhang, Y. Sun, S. He, G. Contardo, F. Villaescusa-Navarro, S. Ho

Cosmological surveys aim at answering fundamental questions about our Universe, including the nature of dark matter or the reason of…

ArXiv:1902.05965

November 15, 2018

Learning to Predict the Cosmological Structure Formation

S. He, Y. Li, Y. Feng, S. Ho, S. Ravanbakhsh, W. Chen, B. Poczos

Matter evolved under influence of gravity from minuscule density fluctuations. Non-perturbative structure formed hierarchically over all scales, and developed non-Gaussian…

ArXiv:1811.06533

August 22, 2018

The Simons Observatory: Science goals and forecasts

Simons Observatory Collaboration

The Simons Observatory (SO) is a new cosmic microwave background experiment being built on Cerro Toco in Chile, due to…

ArXiv:1808.07445

News & Announcements

June 26, 2019

The First AI Simulation of the Universe Is Fast and Accurate — and Even Its Creators Don’t Know How It Works By Thomas Sumner

February 14, 2019

Gravitational Waves Will Settle Cosmic Conundrum

February 06, 2018

Stratospheric Ozone at Lower Latitudes Is Not Recovering, Despite Antarctic Ozone Hole Healing

Upcoming Events

November 2019

22 Fri
- Meeting 1:00 - 2:45 PM
  Cosmology X Data Science Group Meeting
29 Fri
- Meeting 1:00 - 2:30 PM
  Cosmology X Data Science Group Meeting

December 2019

06 Fri
- Meeting 1:00 - 2:45 PM
  Cosmology X Data Science Group Meeting
13 Fri
- Meeting 1:00 - 2:30 PM
  Cosmology X Data Science Group Meeting
20 Fri
- Meeting 1:00 - 2:45 PM
  Cosmology X Data Science Group Meeting
27 Fri
- Meeting 1:00 - 2:30 PM
  Cosmology X Data Science Group Meeting

Group Members

David Spergel, Ph.D.

Director, CCA

David Spergel joined the foundation in 2016 to lead its Center for Computational Astrophysics. He is an astrophysicist with research interests ranging from the search for planets around nearby stars to the shape of the universe.

Shirley Ho, Ph.D.

Group Leader, Cosmology X Data Science

Shirley Ho joined CCA in Summer 2018 as leader of the Cosmology X Data Science group (CDS). Her research interests have ranged from fundamental cosmological measurements to exoplanet statistics to utilizing machine learning to estimate how much dark matter is in the universe.

Gabriella Contardo, Ph.D.

Flatiron Research Fellow, Cosmology X Data Science

Gabriella Contardo joined the foundation in July 2018 as a Flatiron Research Fellow at the Center for Computational Astrophysics. She completed her PhD in machine learning at LIP6, Université Pierre et Marie Curie in Paris, where she worked on cost-sensitive prediction and meta-active learning problems…

Lehman Garrison, Ph.D.

Flatiron Research Fellow, Cosmology X Data Science

Lehman Garrison joined the CCA in 2019 as a Flatiron Research Fellow.

James Colin Hill, Ph.D.

Associate Research Scientist, Cosmology X Data Science

James Colin Hill recently joined the Center for Computational Astrophysics as an Associate Research Scientist.

Sigurd Naess, Ph.D.

Associate Research Scientist, Cosmology X Data Science

Sigurd Naess joined the foundation in 2016 as an associate research scientist in the statistical astronomy group of the Center for Computational Astrophysics. His research focuses on analyzing cosmic microwave background data from experiments such as QUIET, ACT, PIXIE and the Simons Observatory.

Francisco Villaescusa-Navarro, Ph.D.

Guest Researcher

Francisco Villaescusa-Navarro’s research interests range from cosmology to galaxy formation and its work is focused on understanding the impact of massive neutrinos on the cosmological observables and on the usage of the intensity mapping technique as a cosmological tool to study the large-scale structure of…