By IVÁN JIMÉNEZ Twenty years ago an exceptional discovery blurred forever the boundary between what we call stars and what we call planets. A star is characterized by producing nuclear reactions in its interior. However in 1995 a group of researchers of the Instituto de Astrofísica de Canarias (IAC), among them Maria Rosa Zapatero Osorio (now at the Centre for Astrobiology (CAB-CSIC-INTA) discovered an object which appeared to be a star, but without sufficient mass to produce significant nuclear reactions. Although it was given the name Teide-1, the scientists had in fact found a type of

The astronomer is participating in the symposium “First Science with Gaia” within the EWASS 2015 conference

1200 astronomers from 50 countries will take part

The ceremony will be webcast live from the website of the Instituto de Astrofísica de Canarias

She has opened EWASS 2015 with a talk about the 50th anniversary of the publication of the discovery of the Cosmic Microwave Background

The largest gathering of European astronomers will meet in Tenerife for a week