Astronomy & Astrophysics

Astronomy & Astrophysics

Upcoming Events

The Smallest and Faintest Galaxies: Clues to the Nature of Dark Matter and Galaxy Formation

Pupin 1402

4:10 PM - 5:10 PM

Event time is displayed in your time zone.

Cold Giants: The Next Exoplanet Revolution

Pupin 1402

4:05 PM - 4:35 PM

Event time is displayed in your time zone.

Boil-off of Luminous Red Giants: Mass Loss, Supernovae, and White Dwarf Kicks

Pupin 1402

4:10 PM - 5:10 PM

Event time is displayed in your time zone.

News

September 22, 2026

Astrophysics major Lindsay Koo was awarded one of Columbia's Kellett Fellowships

September 18, 2026

Columbia Astronomy celebrates the start of a New Year!

September 15, 2026

Columbia research scientist Jennifer Sokoloski is helping scientists get more from the new Vera C. Rubin Observatory

Featured Publications

On the Deepest Search for Galactic Center Pulsars and an Examination of an Intriguing Millisecond Pulsar Candidate

Karen I. Perez

Vishal Gajjar

Slavko Bogdanov

Jules P. Halpern

Paul B. Demorest

Steve Croft

Matt Lebofsky

David H. E. MacMahon

Andrew P. V. Siemion

Magnetic Field-line Curvature and Its Role in Particle Acceleration by Magnetically Dominated Turbulence

Samuel T. Sebastian

Luca Comisso

Baryonic Masses and Properties of Gaseous Satellite Galaxies

Jingyao Zhu

Yasmeen Asali

Mary Putman

et al.

More Publications

Big Apple Sky Calendar

Date: Jul 6
Event: Earth at aphelion, the most distant it ever gets from the Sun: 1.017 AU (95 million miles)

Date: Jul 9
Event: Venus passes very close to the bright star Regulus (the brightest star in Leo, best viewed looking west about an hour after sunset

Date: Jul 21,28
Event: Join the AAA for evening observing at the High Line, 8–10 pm

Date: Jul 29
Event: Full Buck Moon

Date: Aug 2-3
Event: The Moon passes just north of Saturn

View Full Calendar