A team of astronomers at the University of Hawaiʻi at the Mānoa Institute for Astronomy (IfA) has produced the world’s largest three-dimensional astronomical imaging catalog of stars, galaxies, and quasars. The team used data from UH’s Panoramic Survey Telescope and Rapid Response System, or Pan-STARRS1 (PS1), on Haleakalā. The PS1 3π survey is the world’s ...
What do Albert Einstein, the Global Positioning System (GPS), and a pair of stars 200,000 trillion miles from Earth have in common? The answer is an effect from Einstein’s General Theory of Relativity called the “gravitational redshift,” where light is shifted to redder colors because of gravity. Using NASA’s Chandra X-ray Observatory, astronomers have discovered ...
Astronomers have found compelling evidence that planets start to form while infant stars are still growing. The high-resolution image obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) shows a young proto-stellar disk with multiple gaps and rings of dust. This new result, published in Nature, shows the youngest and most detailed example of dust rings ...
At around 60 million light-years from Earth, the Great Barred Spiral Galaxy, NGC 1365, is captured beautifully in this image by the NASA/ESA Hubble Space Telescope. Located in the constellation of Fornax (the Furnace), the blue and fiery orange swirls show us where stars have just formed and the dusty sites of future stellar nurseries. At the outer ...
Astronomers have presented an explanation for the shapes of planetary nebulae. The discovery is based on a set of observations of stellar winds around aging stars. Contrary to common consensus, the team found that stellar winds are not spherical, but have a shape similar to that of planetary nebulae. The team concludes that interaction with ...
Lithium is becoming common in our everyday lives. It is the key ingredient in the batteries of our mobile phones and electric vehicles, but have you ever wondered where it comes from? A new study that was published in Nature Astronomy and was led by Prof. ZHAO Gang and Dr. Yerra Bharat Kumar from the ...
Through the noise, young stars reveal their inner workings. An Australian-led team has solved the mystery of how some rapidly rotating young stars pulsate. Delta Scuti stars can now be studied in more detail thanks to the work of Professor Tim Bedding and colleagues. By listening to the beating hearts of these, astronomers have identified ...
It’s amazing to sometimes ponder how the universe came into existence. Most of the physical, chemical, and kinetic forces behind the formation of stars, planets, and other heavenly bodies are beyond our comprehension. However, what we have managed to understand over years of observation and study is that a galaxy is primarily built through collisions ...
When a black hole chews up a star, it produces visible light or X-rays, but astronomers have almost never detected both types of radiation. Astronomer Peter Jonker (SRON/Radboud University) and his colleagues have now spotted a number of captured stars with an X-ray telescope a few years after they were discovered in optical light. It ...
NASA’s Kepler spacecraft was designed to find exoplanets by looking for stars that dim as a planet crosses the star’s face. Fortuitously, the same design makes it ideal for spotting other astronomical transients — objects that brighten or dim over time. A new search of Kepler archival data has uncovered an unusual super-outburst from a ...
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