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Learn Observational Astronomy, earn certificates with free online courses from IIT Roorkee, École Polytechnique Fédérale de Lausanne, University of Naples Federico II and other top universities around the world. Read reviews to decide if a class is right for you.

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Kavli Institute for Theoretical Physics
MIGHTEE-HI - The Relation Between the HI Gas in Galaxies and the Cosmic Web - Madalina Tudorache

Explores the relationship between neutral hydrogen gas in galaxies and the cosmic web, discussing observations, data sources, and implications for galaxy formation and evolution.
- YouTube
- 27 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
How Cosmological Filaments Reset the Formation of Disc Galaxies - Florent Renaud

Explore how cosmic filaments influence disc galaxy formation, examining the interplay between the cosmic web and galaxy evolution across time and its implications for cosmology.
- YouTube
- 26 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Cold Streams in the Hot CGM of High Z Galaxies - Han Aung

Explore cold streams in hot CGM of high-redshift galaxies, their properties, and implications for galaxy formation. Gain insights into cosmic web evolution and its impact on early universe structures.
- YouTube
- 29 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Tracking Halo Orbits and Their Mass Evolution Around Large-Scale Filaments - Hannah Jhee

Explore halo orbits and mass evolution around cosmic filaments, examining their dynamics, virialization, and impact on galaxy formation across cosmic time.
- YouTube
- 29 minutes
- On-Demand
- Free Video
World Science Festival
100 Years of Gravitational Waves - From Einstein to LIGO

Nobel laureate Rai Weiss explores the history of LIGO, from Einstein's theories to the groundbreaking detection of gravitational waves, highlighting the technology and challenges behind this remarkable scientific achievement.
- YouTube
- 55 minutes
- On-Demand
- Free Video
World Science Festival
Testing the Limits of Cosmology

Leading physicists explore cutting-edge experiments and theories pushing the boundaries of cosmology, from recreating the Big Bang to searching for multiverses, challenging our understanding of the universe's origins and nature.
- YouTube
- 57 minutes
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- Free Video
Kavli Institute for Theoretical Physics
A New Mechanism for the Origin of WNL Stars - Arpita Roy

Explores a novel mechanism for the formation of WNL stars, discussing recent observational data and theoretical advancements in stellar physics and interior transport processes.
- YouTube
- 30 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Formation and Evolution of Close Magnetic White Dwarf Binaries - Diogo Belloni

Explore the formation and evolution of close magnetic white dwarf binaries, their impact on astrophysics, and implications for stellar remnants and galactic populations.
- YouTube
- 31 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Stellar Dynamical Evolution on the Main Sequence from Kepler Data - Savita Mathur

Explores stellar evolution on the main sequence using Kepler data, focusing on radiation, rotation, magnetic activity, and their relationships across different spectral types and stellar ages.
- YouTube
- 29 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
An Overview of Stellar Convection - Anne Thoul

Comprehensive exploration of stellar convection, covering recent observational data, 1D models, and 3D simulations to improve understanding of heat, chemical, and angular momentum transport in stars.
- YouTube
- 59 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Chasing Polar Alignment in Hierarchical Triple Systems

Explores polar alignment in hierarchical triple systems, discussing circumbinary gas evolution, observational signatures, and numerical modeling techniques for stellar and black hole binaries.
- YouTube
- 23 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Observational Tests of Theory I - Discussion on Binary Systems

Explore observational tests of binary systems in astrophysics, from stellar pairs to supermassive black holes, and their interactions with surrounding gas in this insightful conference talk.
- YouTube
- 49 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Disks Around Binaries and Binaries in Big Disks - Dong Lai

Explore the dynamics of circumbinary gas and its influence on binary systems, from stellar pairs to supermassive black holes. Gain insights into observational signatures and numerical modeling techniques.
- YouTube
- 49 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
Simulating Binaries in Thin Disks - Chris Tiede

Explore numerical techniques for modeling binary systems in circumbinary gas, focusing on thin disks. Learn about evolution, observational signatures, and cross-scale similarities in astrophysics.
- YouTube
- 31 minutes
- On-Demand
- Free Video
Kavli Institute for Theoretical Physics
From Kiloparsec Scales to Merger - Properties of Dual AGNs

Explore dual AGN properties from kiloparsec scales to merger, focusing on systems that become gravitational wave sources. Gain insights into circumbinary gas evolution and its influence on binary systems.
- YouTube
- 50 minutes
- On-Demand
- Free Video

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