Themes: Solar System
and exoplanets
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Crazy facts about the Universe (and what they tell us about the Earth)
IA participated in the 2020 edition of the Junior Fest with the quizz “Crazy facts about the Universe (and what they tell us about the Earth)”. Watch the video!
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51 Pegasi b – 25 years
In October 2020, we celebrate the 25th anniversary of the discovery of the first exoplanet around a Sun-like star – 51 Pegasi b
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Fasten your seat belt: Portugal is heading to other Earths
“Portuguese team discovers another ‘Earth’ and finds hints of existing life.” This title may look like from a sci-fi book, but Nuno C. Santos, of IA, says we are not that far from making it real.
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How many Earths are there in the Milky Way?
In a clear night sky, the human eye can see some 3000 stars, all of them in our galactic neighbourhood. What we can’t see is, perhaps, a similar number of planets, outshined by the light of their host star. Is there among them an Earth 2.0?
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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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Searching for another Earth
Learn how astronomers detect planets orbiting other stars, and how they can know, despite the distance, if any of them is similar to Earth, with Pedro Figueira, of ESO and IA (in Portuguese).
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The unveiling of new worlds
In the latest 25 years, thousands of planets have been discovered orbiting other stars in our galaxy. Sérgio Sousa, of IA, writes on National Geographic that we are closer to know if any of these new worlds is like our Earth.
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Water in the Universe: water on exoplanets
Astronomers have already confirmed more than 2000 planets orbiting other stars. In some of the larger planets, similar to Jupiter, water vapour was detected in their atmospheres. For smaller planets, this detection is more difficult.
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