Small and unassuming, Segue 1 is a nearby dwarf galaxy containing only a handful of stars – too few to provide the gravity needed to keep itself from scattering into space. Like other dwarf galaxies, it was long believed that gravity from a mysterious substance called dark matter was the main binding force.
Peering into the universe’s dark, hazy cosmos to catch the first glimpses of infant stars has long challenged astronomers. The cloud of dense gas and dust that gives rise to these stellar embryos also conceals them.
The night sky is a treasured part of life in the Big Bend region – an awe-inspiring backdrop to our lives. Preserving it takes the support of all in our community. In this effort, three organizations with local properties – Village Fresh Greenhouse Grown, the Brewster County Courthouse, and Terlingua Ranch Lodge – are the latest to adopt nighttime lighting that helps keep our skies dark and stars bright.
Today, a team of researchers, including those at McDonald Observatory, has announced the first significant detection of phosphine in the atmosphere of a cool brown dwarf named Wolf 1130C. With the discovery, astronomers are a step closer to understanding the processes behind how this molecule – an important marker for life - forms. They are also left scratching their heads as to why they haven’t yet detected it in other, similar objects.
Their research was published in the journal Science.
The University of Texas at Austin joins with other members of the Giant Magellan Telescope today in welcoming the Massachusetts Institute of Technology to the international consortium, constructing the $2.6 billion observatory in Chile. The Institute’s participation is enabled by a gift to MIT from philanthropists Phillip (Terry) Ragon ’72 and Susan Ragon.
The Butterfly Nebula, located about 3,400 light-years away in the constellation Scorpius, is one of the best-studied planetary nebulae in our galaxy.
Friday, July 25, through Saturday, July 26, McDonald Observatory hosted the annual Board of Visitors Summer Meeting. Featuring science talks, discussion groups, and telescope tours and viewings, the event connected almost 200 attendees with the latest astronomical research. Although there were minor bouts of stormy weather, each evening the clouds cleared to reveal clear views of the night sky.
Astronomers have discovered a remarkably clumpy rotating galaxy that existed just 900 million years after the Big Bang, shedding new light on how galaxies grew and evolved in the early universe.
An international team of astronomers, led by UT Austin’s Cosmic Frontier Center, has identified the most distant black hole ever confirmed. It and the galaxy it calls home, CAPERS-LRD-z9, are present 500 million years after the Big Bang. That places it 13.3 billion years into the past, when our universe was just three percent of its current age. As such, it provides a unique opportunity to study the structure and evolution of this enigmatic period.
Researchers at The University of Texas at Austin, UC Santa Barbara, Yale University, and National Taiwan Normal University have found that a fair number of Sun-like stars emerge with their rotational axis tilted with respect to their protoplanetary disks, the clouds of gas and dust from which solar systems are born.
