Astronomy

Video: 00:15:30

Meet Arnaud Prost—aerospace engineer, professional diver, and member of ESA’s Astronaut Reserve. From flying aircraft to getting a taste of spacewalk simulation, his passion for exploration knows no bounds.

In this miniseries, we take you on a journey through the ESA Astronaut Reserve, diving into the first part of their Astronaut Reserve Training (ART) at the European Astronaut Centre (EAC) near Cologne, Germany. Our “ARTists” are immersing themselves in everything from ESA and the International Space Station programme to the European space industry and institutions. They’re gaining hands-on experience in technical skills like spacecraft systems and robotics, alongside human behaviour, scientific lessons, scuba diving, and survival training.

ESA’s Astronaut Reserve Training programme is all about building Europe’s next generation of space explorers—preparing them for the opportunities of future missions in Earth orbit and beyond.

This interview was recorded in November 2024. 

You can listen to this episode on all major podcast platforms.

Keep exploring with ESA Explores!

Learn more about Arnaud’s PANGAEA training here.

Hiroyasu Tsukamota has developed a deep-learning-based guidance and control framework called Neural-Rendezvous that could allow spacecraft to safely encounter interstellar objects.

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There are a number of ways that exoplanets have been discovered over recent years but a team of astronomers have been exploring other ways. One particular exciting method is to hunt for them by finding their magnetospheres! Earth and Jupiter are a great example of planets that are surrounded by strong magnetospheres that interact with solar activity and when they do, they release radio emissions. The team of researchers have been demonstrating just how they could detect Jupiter’s radio emissions using simulated data. Not only would they be able to detect it, but they could also measure its rotation and even detect interactions with its moons!

The long-standing question of how animals came to have an anus may have been solved by studies of which genes are active during development in various animals

The long-standing question of how animals came to have an anus may have been solved by studies of which genes are active during development in various animals

In a first, physicists have directly seen Hofstadter’s butterfly—a long-sought-after fractal in the quantum realm

Video: 00:05:23

For over a decade, ESA’s Gaia mission has mapped our galaxy with stunning precision—rewriting the story of the Milky Way. As its mission enters a new phase, we look back at its most groundbreaking discoveries.

When the James Webb Space Telescope was launched in December 2021, one of its primary purposes was to see the first galaxies in the Universe forming just a few million years after the Big Bang. In true JWST style though, it has surpassed all expectations and now, a team of astronomers think they have gone even further back, seeing one galaxy clearing the early fog that obscured the Universe! The image represents a point in time 330 million years after the Big Bang and reveals a bright hydrogen emission from the fog surrounding a galaxy. It was somewhat unexpected though as current models predict it would have been blown away long ago!

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What's the sound of

Data from 300,000 births reveal how essential biological measurements are altered by carrying and delivering a baby

A bioengineer highlights the potential of low-intensity ultrasound for multiple uses, from enhanced drug delivery to the brain to combating cancer

The outer planets remain somewhat of a mystery and Neptune is no exception. Voyager 2 has been the only probe that has visited the outermost planet but thankfully the James Webb Space Telescope is powerful enough to reveal it in all its glory. With its cameras regularly fixed on Neptune it has even picked up auroral activity in some of its latest images. The data was gathered back in 2023 using Webb’s Near-Infrared spectrograph which detected the tell tale sign of auroral activity, an emission line of trihydrogen cation. The element appears on other giant planets too when aurora are present.

Some researchers propose that countries should start to rack up a carbon debt once they exceed their carbon budget, obliging them to do more to draw down carbon dioxide, but the idea is unlikely to form part of international climate agreements

Some researchers propose that countries should start to rack up a carbon debt once they exceed their carbon budget, obliging them to do more to draw down carbon dioxide, but the idea is unlikely to form part of international climate agreements

By going after Social Security, Department of Veterans Affairs and the Department of Education, Donald Trump is signaling his belief that having “good genes” means not having a disability

The first image from a new Italian Earth observation satellite mission was published today: a high-resolution image of a strip of the Italian peninsular showing the city of Rome at a resolution of 2.66 metres. This is three times higher than the resolution currently available for systematic acquisition over Italy.

Evidence of alien worlds goes back farther than you think