ESOcast HD

ESOcast HD


Latest Episodes

New type of star gives clues to magnetars' origins (ESOcast 264 Light)
August 17, 2023

Using multiple telescopes around the world, including European Southern Observatory (ESO) facilities, researchers have uncovered a living star that is likely to become a magnetar, an ultra-magnetic dead star. This video summarises the discovery.

Does this planet have a “sibling” sharing the same orbit? (ESOcast 263 Light)
July 19, 2023

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have found the possible sibling of a planet orbiting a distant star. This video summarises the discovery.

Hidden views of vast stellar nurseries (ESOcast 262 Light)
May 11, 2023

Using ESO's VISTA telescope, astronomers have created a vast infrared atlas of five nearby stellar nurseries by piecing together more than one million images.

Observing the ashes of the first stars (ESOcast 261 Light)
May 03, 2023

Using ESOs Very Large Telescope, astronomers have found the fingerprints left by the explosions of the first stars.

Witnessing the Birth of a Distant Cluster of Galaxies (ESOcast Light 259)
March 29, 2023

Using ALMA, astronomers have detected a large reservoir of hot gas in the still-forming galaxy cluster around the Spiderweb galaxy the most distant detection of such hot gas yet. This further reveals just how early these structures begin to form.

The Missing Link for Water in the Solar System (ESOcast 258 Light)
March 08, 2023

Using ALMA, astronomers have detected the chemical signature of gaseous water in the planet-forming disc V883 Orionis. This acts as a timestamp for the waters formation, allowing us to trace its journey.

Heaviest Element yet Detected in an Exoplanet Atmosphere (ESOcast 257 Light)
October 13, 2022

Using ESOs Very Large Telescope, barium has been detected in the atmosphere of two exoplanets.

'Black Hole Police' Spot Extragalactic Black Hole (ESOcast 255 Light)
July 18, 2022

The black hole police, a team of astronomers known for debunking black hole discoveries, reported finding a "needle in a haystack". After searching nearly 1000 stars outside our galaxy, they found that one of them has a stellar-mass black hole a

What it Takes to Image a Black Hole
May 12, 2022

What does it take to capture an image of the black hole at the centre of our galaxy? This video explains how the Event Horizon Telescope (EHT) works, and how astronomers managed to create one massive

Micronovae – a New Kind of Stellar Explosion (ESOcast 254 Light)
April 20, 2022

Astronomers have discovered a new type of explosion occurring on white dwarf stars in two-star systems. This video summarises the discovery.