Q&A: IceCube Observatory upgrades improve search for elusive cosmic messenger
Kayla DeHolton in front of the IceCube Neutrino Observatory at the South Pole
Dimming X-rays could be boon for life on planets around young sun-like stars
two panels of star clusters
Four Eberly graduate students receive awards at 2026 Graduate Exhibition
Avanti Valragkar pointing at her poster for the Graduate Exhibition to a judge.
Heard on campus: Nobel Prize-winner Andrea Ghez on supermassive black holes
Andrea Ghez stands in front of projected screen
Astronomers thought early universe was full of hydrogen, now they’ve found it
green area of hydrogen gas superimposed on JWST galaxy image
Supermassive black holes are growing slower because they have less to consume
image of large swath of sky including supermassive black holes
Origin of lowest density super-puff planet remains a hazy mystery
illustration of Kepler-51 and its planets
Marker Lectures in Astronomy and Astrophysics set for March 31, April 1
Headshot of Andrea Ghez
Strange cosmic burst from colliding galaxies shines light on heavy elements
image of galaxy surrounded by other stars
Recap: 2026 Ashtekar Frontiers of Science lecture series, ‘Unexpected Pairings’
A presenter stands at the front of a lecture hall speaking to an audience, with slides displayed on a large screen behind them.
Subscribe to Astronomy and Astrophysics