News

News

Mysteriously in-sync pulsar challenges existing theories
13 September 2019

For the first time, astronomers have detected synchronised pulses of optical and X-ray radiation from a mysterious pulsar some 4500 light years away. The observations indicate that a new physical mechanism might be needed to explain the behaviour of fast-spinning sources like this one, known as transitional millisecond pulsars.

Hubble finds water vapour on habitable-zone exoplanet for the first time [heic1916]
11 September 2019

With data from the NASA/ESA Hubble Space Telescope, water vapour has been detected in the atmosphere of a super-Earth within the habitable zone by University College London (UCL) researchers in a world first.

Hubble explores the formation and evolution of star clusters in the Large Magellanic Cloud [heic1915]
9 September 2019

Just as people of the same age can vary greatly in appearance and shape, so do collections of stars or stellar aggregates. New observations from the NASA/ESA Hubble Space Telescope suggest that chronological age alone does not tell the complete story when it comes to the evolution of star clusters.

Unexpected periodic flares may shed light on black hole accretion
11 September 2019

ESA's X-ray space telescope XMM-Newton has detected never-before-seen periodic flares of X-ray radiation coming from a distant galaxy that could help explain some enigmatic behaviours of active black holes.

Gaia untangles the starry strings of the Milky Way
28 August 2019

Rather than leaving home young, as expected, stellar 'siblings' prefer to stick together in long-lasting, string-like groups, finds a new study of data from ESA's Gaia spacecraft.

CHEOPS passes final review before shipment to launch site
29 July 2019The Characterising Exoplanet Satellite, CHEOPS, has successfully passed the final analysis review for its launch on a Soyuz rocket from Europe's Spaceport in Kourou, French Guiana.

Latest Articles

Latest Articles

Shedding light on white dwarfs – the future of stars like our Sun
17 May 2019ESA's Gaia mission has been busy mapping our Milky Way galaxy since 2014, and just over one year ago released its second batch of data on more than one billion stars. Since then, astronomers have been exploring this catalogue to reveal a huge amount of new information about the cosmos. One type of object that has seen an abundance of new...
Rethinking everything we thought we knew about star clusters
26 February 2019ESA's Gaia satellite is on a mission: to map and characterise more than one billion of the stars in the Milky Way. Many of these stars reside in complex, eye-catching clusters scattered throughout our Galaxy and, by studying these stellar groupings, Gaia is revealing much about the formation and evolution of stars in our cosmic home and...

Spacecraft Testing

Spacecraft Testing

#17: Practice makes perfect for CHEOPS inflight operations
25 June 2019It takes collaboration and teamwork to operate a spacecraft. As the CHEOPS launch approaches, a Europe-wide team is preparing to take control of inflight activities once the satellite is in space.
#2: Solar Orbiter receives its sunblock
14 December 2018It's testing time for ESA's Solar Orbiter: after leaving the premises of prime contractor Airbus Defence and Space in Stevenage, UK in September, the spacecraft has started its test campaign at the IABG facility in Ottobrunn, Germany.
#14: Tests, moving to a new home, and more tests
4 June 2018In the last year, the James Webb Space Telescope (JWST) and in particular the telescope and the instruments have passed some key milestones on their road towards launch, now planned for 2020.
17-Sep-2019 00:48 UT

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