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All Posts Tagged Tag: ‘ESO’

Largest Yellow Star Yet Seen Spotted in Binary System

Astronomers this week revealed that they have spotted the largest yellow star ever seen. The object is more than 1300 times the diameter of our Sun and is also one million times brighter. It is also one of the ten largest stars ever discovered. The new observations are to be published in the journal Astronomy & Physics. The star is …

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New Planets Found Among Star Cluster

Astronomers this week have announced the discovery of three planets found within the Messier 67 star cluster. The finding is significant because planets have rarely found orbiting stars that are part of star clusters. The new research shows that planets may actually be just as common within star clusters as they are throughout the rest of the galaxy. “These new …

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‘Snow Line’ Spotted in Young Solar System

Astronomers this week revealed that the first-ever “snow line” of a solar system has been spotted. Scientists believe that the snow line – similar to ones seen on the tops of mountains on Earth – could provide information about how planets with differing chemical compositions evolve around young stars. In the far reaches of accretion discs around young stars, molecules …

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Astronomers Spot Massive Star In-Utero

Astronomers using the European Southern Observatory‘s Atacama Large Millimeter/submillimeter Array (ALMA) this week revealed that they have spotted a massive star in the process of being born. Researchers hope the new information can help uncover just how massive (stars with more than 10 times the mass of the sun) stars form. “The remarkable observations from ALMA allowed us to get …

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Distant Galaxy Caught ‘Feeding’ on Gas Clouds

Astronomers using the European Southern Observatory‘s Very Large Telescope have found a distant galaxy that is “feeding” on nearby gas clouds. The flow of gas into the galaxy, astronomers say, is generating star formation and driving the rotation of the galaxy. The new observations lend credence to the hypothesis that galaxies grow and form stars by drawing in nearby material. …

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Three Planets Found in the Habitable Zone of Nearby Star

The European Southern Observatory (ESO) this week announced it has found six planets in the Gliese 667C system, and that three of those planets are located within the system’s habitable zone. The habitable zone of a system is the area around a star where liquid water can exist. With the presence of water also comes the possibility for life as …

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Giant Planet Formation May Have Been Spotted

Astronomers have found what could be the first-ever sighting of a planet forming while still in the midst of a dust cloud surrounding a star. The object, which orbits the star HD 100546, is only 335 light-years from Earth and appears to be a gas giant. If the findings, published this week in Astrophysical Journal Letters, are confirmed, they could …

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Globular Cluster Aging Revealed in New Study

Globular clusters are spherical groupings of stars tightly bound by gravity. While these objects are usually 12 to 13 billion years old, a new study has found that clusters can appear to be vastly different ages, depending on the behavior of their member stars. Astronomers have used the European Southern Observatory’s (ESO) MPG/ESO 2.2-meter telescope and NASA‘s Hubble Space Telescope …

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New “Green Bean” Galaxies Discovered

A new type of galaxy nicknamed “green bean galaxies” has been identified and they are some of the rarest objects in the known universe. The nickname comes from the galaxies’ appearance: they glow with intense light generated by the ionized gas surrounding a super-massive black hole. They also resemble “green pea galaxies,” but are larger. Though most galaxies have a …

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Rocky Planets Could Be More Common Than Previously Thought

Astronomers have now observed that the dust disc orbiting a brown dwarf contains millimeter-sized solid particles – the same “grains” found in the denser discs surrounding new stars.The new data suggests that rocky planets, such as Earth, may be more common throughout the univers than previously thought. Prevailing hypotheses held that brown dwarf accretion discs were too sparse, and the …

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Astronomers Spot the Most Massive Quasar Outflow Yet Seen

Astronomers have discovered a quasar with the most massive outflow ever seen. Quasars are bright galactic centers powered by supermassive black holes, and many of them accelerate the material around them, throwing it out a high speed in a process that plays a key role in the evolution of galaxies. The newly discovered quasar is, according to researchers, five times …

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Astronomers Discover Dwarf Planet Makemake Has No Atmosphere

Astronomers have discovered that a dwarf planet in our solar system named Makemake has no atmosphere. The object, which orbits in the outer solar system, was expected to have an atmosphere similar to another dwarf planet, Pluto, but new observations show that is not the case. The new discovery was made when European Southern Observatory (ESO) astronomers in observatories in …

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