Astronomy and Astrophysics

Observatory designed for Greek youth fulfills Thanasis Economou’s lifelong love of space exploration.

Century-old relic to be passed around on telescope repair mission.

Harris School challenges students to think critically across disciplines.

272 stars gave their lives for the photo spread on cosmic explosions that graced pages 80 and 81 of the March 2007 National Geographic.

Coined by University of Chicago astrophysicist Michael Turner in 1998, dark energy—the force causing the universe to expand faster over time—remains one of the great mysteries of physics.

Trillions upon trillions of cosmic rays hit the Earth every day. What are they?

<p>Photos: First Images from the James Webb Space Telescope</p>

<p>Photos: Remembering Eugene Parker, 1927-2022</p>