Astronomy & Astrophysics

Astronomy & Astrophysics

Upcoming Events

Sun-as-a-star flare observations with high-resolution telescopes

Pupin 1402

4:05 PM - 4:35 PM

Event time is displayed in your time zone.

News

April 11, 2025

New observations upended scientists' standing hypothesis about how a star would engulf a planet, causing its demise

March 27, 2025

Columbia Researcher Named AAAS Fellow

March 14, 2025

David Helfand reappointed Chair of the American Institute of Physics

Featured Publications

Electrodynamics and dissipation in the binary magnetosphere of pre-merger neutron stars

Jens F. Mahlmann

Andrei M. Beloborodov

Inferring the density and membership of stellar streams with flexible models: The GD-1 stream in Gaia Data Release 3

Kiyan Tavangar

Adrian M. Price-Whelan

Estimating uncertainties in the back-mapping of the fast solar wind

A. Koukras

L. Dolla

R. Keppens

Exoplanet Occurrence Rate with Age for FGK Stars in Kepler

Maryum Sayeed

Ruth Angus

Travis Berger

Yuxi (Lucy) Lu

Jessie Christiansen

Daniel Foreman-Mackey

Melissa Ness

Using simulation based inference on tidally perturbed dwarf galaxies: the dynamics of NGC205

Axel Widmark

Kathryn V. Johnston

AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback

Jennifer Mead

Kaley Brauer

Greg L. Bryan

Mordecai-Mark Mac Low

Alexander P. Ji

John H. Wise

Andrew Emerick

Eric P. Andersson

Anna Frebel

Benoit Côté

More Publications

Big Apple Sky Calendar

Date: Event
Apr 26-30: Venus and Saturn are mighty close together in the morning sky this week, Venus being the obvious, brilliant object just above and to the right of the sunrise point
May 3: The first-quarter Moon passes just north of Mars in the evening sky
May 8-9: International Space Station (ISS) makes evening overpasses of New York City, in the west on May 8 at 10:15 pm and southwest on May 9 at 9:17-9:23 pm
May 12: Full Flower Moon
May 22: Saturn is the medium-bright object just south of the Moon, but its rings will be very thin and practically edge-on, causing them to nearly disappear when seen from Earth if viewed through a telescope
May 23-24: The waning crescent Moon passes close to Venus in the early-morning sky, for those with a clear eastern horizon
May 31: Venus reaches its greatest western elongation, rising three hours ahead of the Sun, and appearing well up in the east near dawn; Mars is the medium-bright reddish object close to the Moon

View Full Calendar