Press release

Dark matter even darker than once thought.

Released 26 March 2.015, link to publication. Astronomers using observations from the NASA/ESA Hubble Space Telescope and NASA’s Chandra X-ray Observatory have studied how dark matter in clusters of galaxies behaves when the clusters collide. The results, published in the journal Science on 27 March 2015, show that dark matter interacts with itself even less… Sigue leyendo Dark matter even darker than once thought.

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Photo Release.

On the hunt for newborn stars.

This image, taken with the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3), shows a patch of space filled with galaxies of all shapes, colours, and sizes. WFC3 is able to view many such galaxies at an unprecedented resolution — high enough to locate and study regions of star formation in a bid to understand how new stars spring to life throughout the cosmos. Credit: ESA/Hubble & NASA Acknowledgement: Judy Schmidt (geckzilla).

Publication.

A smiling lens.

You can make out two orange eyes and a white button nose. In the case of this “happy face”, the two eyes are the galaxies SDSSCGB 8842.3 and SDSSCGB 8842.4 and the misleading smile lines are actually arcs caused by an effect known as strong gravitational lensing. Credit: NASA & ESA Acknowledgement: Judy Schmidt (geckzilla.org)