How the Earth and moon formed, explained
How old is the Earth and how did we get our moon? Learn what we know and how we know it—and what mysteries still remain.
The Hubble constant, explained
One of the most important numbers in cosmology, the Hubble constant tells us how fast the universe is expanding, which in turn tells us the age of the universe and its history.
Daniel Holz
Title: Professor of Astronomy & Astrophysics and Physics
Expertise: Black holes, Dark Energy and Dark Matter, General relativity, Gravitational lensing, Gravitational waves
Departmental website: https://astrophysics.uchicago.edu/people/profile/daniel-e.-holz/
Fred Ciesla
Title: Professor in Geophysical Sciences
Expertise: Asteroids and meteorites, Astronomy and Astrophysics, Comets, Planetary science, Theoretical modeling
Personal website: http://geosci.uchicago.edu/~fciesla/index.html
Robert Rosner
Title: William Wrather Distinguished Service Professor in Astronomy & Astrophysics, Physics, the Enrico Fermi Institute and the College
Expertise: Theoretical physics, computational physics, Nuclear energy
Departmental website: https://astrophysics.uchicago.edu/people/profile/robert-rosner/
John E. Carlstrom
Title: Subrahmanyan Chandrasekhar Distinguished Service Professor; Chair, Department of Astronomy & Astrophysics
Expertise: Cosmology, South Pole, Dark energy, Cosmic microwave background
Departmental website: https://astrophysics.uchicago.edu/people/profile/john-e.-carlstrom/