Scientists who have been working on creating and validating the data contained in the catalogue tell us why they are waiting for this extraordinary release.

Featured in the video: Antonella Vallenari (INAF, Astronomical Observatory of Padua), Anthony Brown (Leiden University), Timo Prusti (European Space Agency), Annie Robin (Institut UTINAM, OSU THETA Franche-Comté-Bourgogne), Laurent Eyer (University of Geneva) and Federica Spoto (IMCCE, Observatory of Paris).

A media briefing on the second Gaia data release will be held at the ILA Berlin Air and Space Show in Germany on 25 April 11:00-12:15 CEST. Watch the webstream at

Learn more about Gaia:

★ Subscribe:

Bob Brewin is pioneering a new technique in satellite oceanography - by going surfing.
The Plymouth Marine Laboratory scientist uses his board to take sea surface temperature measurements, and then use them to better interpret data from European satellite Sentinel-3.

This video is also available in the following languages:

★ Subscribe to the channel:

Ο Μπομο Μπρούιν ίναι πρωτοπόρος σε μια νέα τεχνική στη δορυφορική ωκεανογραφία - κάνοντας σέρφινγκ. Η ιδέα του είναι να χρησιμοποιήσει την σανίδα του για να μετρήσει τη θερμοκρασία της θάλασσας και στη συνέχεια να χρησιμοποιήσει τα στοιχεία αυτά για να ερμηνεύσει καλύτερα τα δεδομένα του ευρωπαϊκού δορυφόρου Sentinel-3.

★ Εγγραφείτε:

Bob Brewin ist der Erfinder einer neuen Technik in der Satelliten-Ozeanographie - er arbeitet auf dem Surfbrett.

Er hatte die Idee, mit seinem Board die Temperatur der Meeresoberfläche zu messen, um damit die Daten des europäischen Satelliten Sentinel-3 besser interpretieren zu können. Und es gibt einen Grund für diese Messungen erklärt Bob Brewin, Wissenschaftler am Plymouth Marine Labor.

★ Sbonnieren:

Utilizando la tabla de surf, se puede medir la temperatura de la superficie del mar, y cruzar esos datos con los de los satélites Sentinel-3.
El último satélite de Copernicus, Sentinel-3B, controlará los efectos del cambio climático en el mar y los océanos.

★ Suscríbete:

Bob Brewin est l'inventeur d'une nouvelle technique en océanographie par satellite, en surfant. Son idée est simple : mesurer la température de l'eau grâce à un appareil fixé sur son surf et comparer ses données avec les données du satellite européen Sentinel-3. Et cela peut être très utile.

★ Souscrire:

Bob Brewin úttörő technikát próbál ki a műholdas óceanográfiában - úgy, hogy szörfözni megy.

Arra használja a deszkáját, hogy megmérje a tenger felszínének hőmérsékletét, és értelmezze az adatokat,amelyeket az európai Sentinel-3 műhold küldött.

★ Iratkozz fel:

Bob Brewin é cientista utiliza uma técnica pioneira na recolha de imagens em oceanografia, uma técnica que passa pelo surf. O aparelho que equipa as pranchas chama-se SmartFin.
Usa a prancha para medir a superfície das águas, recolhendo dados que conjuga com as informações do satélite Sentinel 3. Um método muito inovador.

★ Se inscrever:

Jeremy Wilks, in questa puntata di Space si occupa di oceani e della ricerca che riguarda la superficie dei mari. Dal Nord della Francia per osservare le alghe fino al sud dell'Inghilterra dove anche i surfisti possono contribuire alla ricerca, tutto questo grazie all'utilizzo dei satelliti.

Bob Brewin sta testando una nuova tecnica nell'oceanografia mediante l'uso dei satelliti, grazie al surf.

La sua idea è di utilizzare la tavola per misurare la temperatura superficiale del mare, per poi sfruttare queste misurazioni per capire meglio i dati che arrivano dal satellite europeo Sentinella-3.

★ Sottoscrivi:

The mission is called Horizons to evoke exploring our Universe, looking further than our planet and broadening our knowledge.
Alex will be launched in June with US astronaut Serena Auñón-Chancellor and Russian cosmonaut Sergei Prokopyev from the Baikonur cosmodrome, Kazakhstan, in the Soyuz MS-09 spacecraft.

★ Subscribe:

Learn more about:


Electromagnetic levitator:

Live cell imaging:




Both of the nanosatellites were built by GomSpace in Denmark. GomX-4A, financed by the Danish Ministry of Defence, is focused on monitoring and imaging Denmark’s Arctic territory. The ESA-backed GomX-4B is testing a micro-propulsion system as well as an inter-satellite radio link with its counterpart. It also carries other technology payloads, including a hyperspectral imager.

CubeSats are small satellites based around standard 10cm cubic units, but these two ‘six-unit’ CubeSats still required weeks of in-orbit testing once they reached space, just like full-sized missions.

GomSpace showed the satellites in action for the first time during a live press conference from their Aalborg headquarters on 12 April 2018. The retrieval process from GomX-4A to GomX-4B – and vice versa – down to Earth went according to schedule, confirming the satellite pair can share both data and images and send them home.

Credit: GomSpace

★ Subscribe:

Learn more:

The three-year study took place in the Centre’s 10-m deep Neutral Buoyancy Facility (NBF) near Cologne in Germany. This is one of four such immersion tanks worldwide – the others are in the United States, China and Russia – and is used to train astronauts for ‘extra vehicular activity’ (EVA), also known as spacewalks.

With International Space Station operations moving towards an international lunar return in the late 2020s, ESA’s NBF has been used to investigate moonwalk procedures for the lunar surface.

Moondive was run by a consortium led by the French company, COMEX, which specialises in human and robotic exploration of extreme environments. Footage is also seen from precursor project Moonwalk, including simulated EVAs off the coast of Marseilles, funded by the European Commission’s Seventh Framework Programme.

Credits: COMEX/EC FP7 Moonwalk project

★ Subscribe:
Learn more: