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Liquid water on Mars

© Afrim Constantin –

A study conducted by researchers at the Mars Group at the University of Copenhagen shows that water can exist in liquid near the Martian surface. The discovery has been obtained thanks to the discovery of perchlorate in the soil calcium, a substance which allows keeping the water in the liquid state, in the form of

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The movie of Milky Way

© Afrim Constantin –

The more accurate reconstruction of the history of star formation in galaxies similar to our offers us the best vision of what may have happened in the course of billions of years, even in the Milky Way. A kind of ‘film’ made up of many frames, about 2,000, each representing a snapshot of the state

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Extragalactic neutrinos on the wings of GRBs

© Afrim Constantin –

A model published this week in Nature Communications, from the data of IceCube, reconstructs the production process more types of astroparticle by the gamma-ray burst. It shows how the different outcomes are a result of the non-uniformity of their internal structure. Gamma-ray bursts as intergalactic highways. This analogy was chosen by Mauricio Bustamante, of Ohio

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Old stars in young body

© Afrim Constantin –

An international study with several Italian researchers discovered red giant stars that are older if we look at their chemical composition, but considered young by the internal structure. Comment by Cristina Chiappini (AIP) and Josefina Montalban (INAF). Red giant stars with the chemical clock malfunctioning. And this was discovered by an international team of astrophysicists,

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The seasons of the Sun

© Afrim Constantin –

Our star is subject not only to an eleven-year cyclical trend, but also a kind of seasonal variability, much shorter. This hypothesis is advanced by a team of researchers and published in the journal Nature Communications. We have learned, starting from the observation of the number of sunspots and gradually, more and more in depth

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Top 10 awesome facts about space

© Afrim Constantin –

Click on image to make it bigger Credit: Infographic created by Afrim Constantin COPYRIGHT 2015 © spacefan.org

Dawn to Ceres: science begins

© Afrim Constantin –

On April 10, the probe of the NASA Dawn will enter the first orbit around Ceres scientific. For the occasion, the INAF from Palermo organizes an event dedicated to the mission and the first results of this intriguing asteroid. Since coming to the dwarf planet Ceres, March 6, the probe Dawn NASA worked perfectly, went

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Deep in our galaxy

© Afrim Constantin –

Continue the way towards ever deeper knowledge of planetary systems in our galaxy. A new observational strategy and very detailed measures are described in the new article in Astronomy & Astrophysics. Within the program GAPS (Global Architecture of Planetary Systems), which deals with the characterization of planetary systems thanks to the HARPS spectrograph mounted at

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White dwarf to the supernova

© Afrim Constantin –

A team of US researchers analyzed X-ray data of the supernova remnant known as 3C 397 collected by the telescope Suzaku. The results indicate that the explosion, which took place thousands of years ago, was triggered by a single white dwarf. Using the archive data from X-ray satellite Suzaku, astronomers were able to determine the

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