Where is the Universe's missing matter? 18 April 2018 Astronomers using ESA's XMM-Newton space observatory have probed the gas-filled haloes around galaxies in a quest to find 'missing' matter thought to reside there, but have come up empty-handed – so where is it? Read more

XMM-Newton spies first clear X-ray flares from massive stellar lighthouse 26 February 2018 In 2014, ESA's XMM-Newton spotted X-rays emanating from the massive star Rho Ophiuchi A and, last year, found these to ebb and flow periodically in the form of intense flares – both unexpected results. The team has now used ESO's Very Large Telescope to find that the star boasts a strong magnetic field, confirming its status as a cosmic lighthouse. Read more

Stellar winds behaving unexpectedly 02 February 2018 ESA's XMM-Newton has spotted surprising changes in the powerful streams of gas from two massive stars, suggesting that colliding stellar winds don't behave as expected. Read more

Surprisingly erratic X-ray auroras discovered at Jupiter 30 October 2017 ESA and NASA space telescopes have revealed that, unlike Earth's polar lights, the intense auroras seen at Jupiter's poles unexpectedly behave independently of one another. Read more

Rapid changes point to origin of ultra-fast black hole winds 01 March 2017 ESA and NASA space telescopes have made the most detailed observation of an ultra-fast wind flowing from the vicinity of a black hole at nearly a quarter of the speed of light. Read more

Black hole feedback in the luminous quasar PDS 456 20 February 2015 Read more

An Optically Obscured AGN in a Low Mass, Irregular Dwarf Galaxy: A Multi-Wavelength Analysis of J1329+3234 19 December 2014 Read more

A Hot Cocoon in the Ultralong GRB 130925A: Hints of a PopIII-like Progenitor in a Low-Density Wind Environment 11 July 2014 Read more