Time domain astronomy is a research area focused on observing and characterizing astronomical phenomena as a function of time, emphasizing variability, transients, and dynamic processes across the electromagnetic spectrum and, increasingly, in multi-messenger channels (gravitational waves, neutrinos). It leverages high-cadence surveys, wide-field imaging, and rapid follow-up to study events such as supernovae, tidal disruption events, variable stars, active galactic nuclei, kilonovae, and fast radio bursts. Methodologically, it depends on time-series analysis, real-time alert systems, and automated classification pipelines, integrating large-scale data processing and statistical inference to constrain physical models of transient astrophysical sources and their environments.
The Vera C. Rubin Observatory has started releasing its first discoveries: including supernovae, variable stars and asteroids, which will from now on be discovered at an astonishing rate as it begins its Legacy Survey of ...
Astronomy
Mar 3, 2026
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It's been about eight months since the Vera Rubin Observatory (VRO) saw first light. Now the telescope is scanning the night sky to detect transient changes and sending alerts to astronomers and observatories around the world ...
Astronomy
Mar 2, 2026
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Thanks to Fink, a software package created by two CNRS engineers, it is now possible to track millions of transient celestial phenomena observed in the sky by the Vera C. Rubin Observatory in Chile, in real time and with ...
Astronomy
Feb 26, 2026
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When you look up at the night sky, it appears unchanging. But if you look deep enough you will find that the sky is in fact constantly shifting. Satellites, asteroids and interstellar objects pass by. Stars not only shine ...
Astronomy
Feb 26, 2026
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On July 2, 2025, the China-led Einstein Probe (EP) space telescope detected an exceptionally bright X-ray source whose brightness varied rapidly during a routine sky survey. Its unusual signal immediately set it apart from ...
Astronomy
Feb 10, 2026
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At the heart of our own galaxy, there is a dense thicket of stars with a supermassive black hole at the very center. NASA's Nancy Grace Roman Space Telescope will provide the deepest-ever view of this zone, revealing stars, ...
Astronomy
Jan 26, 2026
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A research team has investigated quasar variability by tracking optical to mid-infrared (MIR) wavelengths of variability information. This multiband joint analysis provides an opportunity to probe the dust structure in the ...
Astronomy
Jan 23, 2026
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Using the Whole Earth Blazar Telescope (WEBT), an international team of astronomers have performed long-term photometric observations of a luminous blazar known as Ton 599. Results of the observations, published in the Astronomy ...
Astronomers from the Aryabhatta Research Institute of Observational Sciences (ARIES) in India and elsewhere have conducted a long-term photometric and spectroscopic study of a young stellar object known as V1180 Cassiopeiae. ...
Astronomers have conducted multiwavelength observations of a recently detected fast X-ray transient designated EP241107a. Results of the observational campaign, published November 4 on the arXiv preprint server, shed more ...
