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The 3D Fireworks Of A Star

February 5, 2013 Leave a comment

T. Liimets, R.L.M. Corradi, M. Santander-García, E. Villaver, P. Rodríguez-Gil, K. Verro, I. Kolka

T. Liimets, R.L.M. Corradi, M. Santander-García, E. Villaver, P. Rodríguez-Gil, K. Verro, I. Kolka

In 1901 the star GK Persei gave off a powerful explosion that has not stopped growing and astonishing ever since. Now a team of Spanish and Estonian astronomers has reconstructed the journey of the emitted gas in 3D which, contrary to predictions, has hardly slowed down its speed of up to 1,000 km/s after all this time.

Thanks to the images captured from the Isaac Newton Telescope and the Nordic Optical Telescope in La Palma (Canary Islands, Spain), a European team of astronomers has constructed a three dimensional map of the remnant of a nova, or in other words, what was left of the star after its explosion. The results have just been published in the Astrophysical Journal.

Full Story: http://www.alphagalileo.org/ViewItem.aspx?ItemId=127875&CultureCode=en

NASA Joins ESA’s ‘Dark Universe’ Mission

February 5, 2013 Leave a comment

NASA has officially joined ESA’s Euclid mission, a space telescope designed to investigate the mysterious natures of dark matter and dark energy.

To be launched in 2020, Euclid’s 1.2 m-diameter telescope and two scientific instruments will map the shape, brightness and 3D distribution of two billion galaxies covering more than a third of the whole sky and looking back over three-quarters of the history of the Universe.

Scientists hope to solve key problems in our understanding of the evolution and fate of our expanding cosmos: the roles played by ‘dark matter’ and ‘dark energy’.

Full Story: http://www.esa.int/Our_Activities/Space_Science/NASA_joins_ESA_s_dark_Universe_mission