Themes: Universe and gravitation
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The Phantom Universe
Part of the Universe we cannot see, but we feel it. More surprisingly, that is almost everything that exists, but we don’t know what it is.
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International Day of Women and Girls in Science 2021
On the 11th of February 2021, the IA joined the celebrations of the International Day of Women and Girls in Science, with a talk with researchers followed by a quiz dedicated to the role of women in astronomy and in its history.
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Giant radio galaxies may be more common than previously thought
What is a giant radio galaxy, and what these impressive structures may reveal about the galaxies’ past? José Afonso in an interview to Rádio Observador.
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Black Holes: The most secret places in the Universe
Let’s review the historical journey that is taking us more and more closer to the secrets of black holes, width Francisco Lobo, of IA.
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Astronomy in Questions and Answers
Discover more about the Universe, in a Q&A session with a panel of five researchers, included in the 30th Encontro Nacional de Astronomia e Astrofísica.
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Listening to the Universe
Astronomy with gravitational waves
We’ve seen throughout millennia a silent movie of the Universe. Since 2015, we started to listen to it at last. With the gravitational waves astronomy, we are listening to the Universe, and it has much more to tell us. By Lara Sousa, of IA.
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Multiverse
Modern theories of cosmology appear to predict that our region of space is a minuscule fragment of a huge ‘multiverse’, where over vast distances physical properties, and perhaps the nature of physical laws themselves, can change.
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In a very distant galaxy: 3C 75
Two black holes orbit each other in the centre of collision of two galaxies, in the Abell 400 galaxy cluster.
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