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The limits to galactic growth

Astronomers have observed the Sculptor Galaxy (NGC 253) producing an outflow of molecular gas, curtailing its ability to form new stars. The galaxy's starburst region is shedding massive amounts of gas, with a total mass estimated to be nine times that of our Sun each year.

SourceMax-Planck-Gesellschaft·JournalNature·DateJul 25, 2013

Starburst to star bust

Researchers using ALMA discovered that Sculptor Galaxy is expelling massive concentrations of cold gas through galactic winds, depriving the galaxy of fuel for new stars. This phenomenon may explain why few high-mass galaxies are observed in the cosmos, as starburst-driven winds recycle rather than remove star-forming material.

SourceESO·JournalNature·DateJul 24, 2013

Ripped apart by a black hole

Astronomers observe VLT's real-time data of a gas cloud accelerating towards the Milky Way's supermassive black hole. The cloud is being grossly stretched by the black hole's extreme gravitational field, with its light becoming harder to see.

SourceESO·JournalThe Astrophysical Journal·DateJul 17, 2013

Feeding galaxy caught in distant searchlight

Astronomers have observed a galaxy feeding on material from its surroundings, shedding light on galaxy formation. The study used ESO's VLT to analyze the properties of gas around the galaxy, providing unique insights into the growth of galaxies.

SourceESO·JournalScience·DateJul 4, 2013

Low sodium diet key to old age for stars

Researchers found that 70% of stars in a globular cluster do not undergo the final nuclear burning and mass-loss phase, contradicting previous theories. The team discovered that these stars have low levels of sodium, suggesting a link between sodium content and stellar evolution.

SourceESO·JournalNature·DateMay 29, 2013

Witnessing starbursts in young galaxies

Researchers have discovered vigorous starbursts in young galaxies, indicating the universe produced stars much earlier than thought. The findings reveal a rate of star formation 1,000 times greater than today's Milky Way and provide new insights into the history of the universe.

SourceThe Kavli Foundation·JournalNature·DateMar 14, 2013

The birth of a giant planet?

An international team led by Sascha Quanz has studied the disc of gas and dust around young star HD 100546, spotting a candidate protoplanet that could be a giant similar to Jupiter. The discovery provides an unique laboratory for studying the formation process of a new planetary system.

SourceESO·JournalThe Astrophysical Journal Letters·DateFeb 28, 2013

Clues to the mysterious origin of cosmic rays

A team of astronomers used the VIMOS instrument on the VLT to study a one-thousand-year-old supernova remnant. They found evidence of rapidly moving protons in the gas, which could be the necessary seed particles for cosmic rays to form.

SourceESO·JournalScience·DateFeb 14, 2013

ALMA sheds light on planet-forming gas streams

Astronomers using ALMA have observed the first direct evidence of vast gas streams flowing across a gap in a young star's disc, thought to be created by giant planets guzzling gas as they grow. The discovery provides insight into planet formation theories.

SourceESO·JournalNature·DateJan 2, 2013

Dark galaxies of the early Universe spotted for the first time

Astronomers have spotted the first direct detection of dark galaxies in the early Universe, shedding light on these elusive objects. The team used a bright quasar to illuminate gas-rich galaxies, revealing their existence and properties, including suppressed star formation efficiency.

SourceESO·JournalMonthly Notices of the Royal Astronomical Society·DateJul 11, 2012

Keeping an eye on the Universe

The CalTech-led Catalina Real-Time Transient Survey has released a massive dataset of 200 million celestial objects, including stars, supernovae, and asteroids. This unprecedented data set will enable scientists to study the evolution of stars, massive black holes, and the structure of the Milky Way.

A black hole's dinner is fast approaching

Astronomers have discovered a unique new object, a dusty ionized gas cloud, nearly doubling its speed in seven years and approaching the event horizon of the black hole. The cloud will break apart completely over the next few years due to external pressure and gravitational pull.

SourceESO·JournalNature·DateDec 14, 2011

Single bioptic telescope for low vision driving may not obscure road view of second eye

A recent study by Schepens Eye Research Institute found that a bioptic telescope on one lens of glasses used for low vision driving may not prevent the wider view of the road with the second eye. The study, published in May 2011 Archives of Ophthalmology, suggests that individuals wearing such telescopes can detect targets in the area ...

SourceSchepens Eye Research Institute·JournalArchives of Ophthalmology·DateMay 9, 2011

Back to the roots of the solar system

Two new observations reveal detailed structures in protoplanetary disks of two young stars, including a large gap similar to our solar system's. The images suggest the presence of one or more massive planets sweeping up material from the disk, potentially forming an entire planetary system.

SourceMax-Planck-Gesellschaft·JournalThe Astrophysical Journal Letters·DateFeb 18, 2011

Growing galaxies gently

A team of astronomers has discovered that young galaxies can grow by sucking in cool streams of hydrogen and helium gas, forming new stars. This process, known as accretion, provides a gentler alternative to galaxy mergers, which are thought to be the primary mechanism for galaxy growth.

SourceESO·JournalNature·DateOct 13, 2010

Black hole blows big bubble

Astronomers have discovered the most powerful pair of jets from a stellar black hole, blowing a huge bubble of hot gas. The discovery reveals that some black holes can release at least as much energy in the form of collimated jets as radiation, leading to an expansion of the surrounding interstellar gas.

SourceESO·JournalNature·DateJul 7, 2010

Team using Subaru Telescope makes major discovery

An international team of scientists has made the first direct observation of a planet-like object orbiting a star similar to the sun. The object, GJ 758 B, is estimated to be 10-40 times as massive as Jupiter and orbits its star at a distance of approximately 300 trillion miles.

SourcePrinceton University·JournalThe Astrophysical Journal Letters·DateDec 3, 2009

Scientists find solution to solar puzzle

Researchers from the University of Sheffield and Queen's University Belfast have made a groundbreaking discovery about the Sun's corona. They found evidence for the existence of Alfvén waves, which transport energy to heat the Sun's outer atmosphere, reaching temperatures of over a million degrees.

SourceUniversity of Sheffield·JournalScience·DateMar 20, 2009

Laser-sculpted optical devices for future giant telescopes

New research demonstrates how laser-based techniques can create micron-sized light pathways in three dimensions, enabling the detection of faint light from extrasolar planets and galaxies. This technology has the potential to improve the sensitivity and precision of future telescopes, such as the planned European ELT.

SourceOptica·JournalOptics Express·DateFeb 5, 2009