A team of astronomers from the La Silla Observatory of the European Southern Observatory (ESO) has discovered that a remote asteroid located on the periphery of the Solar System called Chariklo, is surrounded by two dense and narrow rings, which make it the smallest object ever found. so far owning this ring system.
White dwarfs are, along with red dwarfs, the most abundant stars in the universe. Now, thanks to research carried out by a team of astronomers from the University of Leicester (United Kingdom) and the University of Arizona (USA), one of the great mysteries of celestial archeology has been solved for more than 20 years: the Hot white dwarfs are contaminated by debris of planetary material.
On Titan, Saturn's moon and the second largest planetary satellite in the Solar System, there are possibly waves too. The Earth, then, would not be the only place where this phenomenon occurs.
On April 24, 1990, the Hubble Space Telescope was launched into space. On his twentieth birthday we collect some of his most recent contributions to the knowledge of the Cosmos.
The circle is closing more and more around possible exoplanets that could host life thanks to the presence of water. So much so that a team of astronomers from the University of Puerto Rico has drawn up a list of the 9 candidates. They are as follows:
Mercury is about 5,000 kilometers in diameter; It is, in fact, the smallest planet in the solar system, and even smaller today. A team of NASA astronomers has discovered that the planet has a slightly smaller radius than previously thought, because the contraction it has suffered in the last 4 billion years has been much more pronounced than previously imagined. experts. This contraction has shrunk its radius by about 7 kilometers.
NASA's Hubble Space Telescope has captured images of an asteroid breaking into pieces; an event astronomers had never observed before. This finding has been investigated by a team of astronomers from the University of California at Los Angeles (UCLA) and published in the Astrophysical Journal Letters.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
