Active galactic nuclei (AGNs) play a major role in galaxy evolution. Astronomers from SRON and RuG have now used a record sample of galaxies to confirm that galaxy mergers have a positive effect on igniting AGNs. They were able to compile about 10 times more pictures of merging galaxies than previous studies by using a ...
On May 29, 2020, a family of sunspots — dark spots that freckle the face of the Sun, representing areas of complex magnetic fields — sported the biggest solar flare since October 2017. Although the sunspots are not yet visible (they will soon rotate into view over the left limb of the Sun), NASA spacecraft ...
Astronomers using NASA’s Hubble Space Telescope are finding that planet formation is tough in the rough-and-tumble central region of the massive, crowded star cluster Westerlund 2. Located 20,000 light-years away, Westerlund 2 is a unique laboratory to study stellar evolutionary processes because it’s relatively nearby, quite young, and contains a large stellar population. A 3-year ...
Gravitational-wave researchers at the University of Birmingham have developed a new model that promises to yield fresh insights into the structure and composition of neutron stars. The model shows that vibrations, or oscillations, inside the stars can be directly measured from the gravitational-wave signal alone. This is because neutron stars will become deformed under the ...
In our 13.8 billion-year-old universe, most galaxies, like our Milky Way, form gradually, reaching their large mass relatively late. But a new discovery made with the Atacama Large Millimeter/submillimeter Array (ALMA) of a massive rotating disk galaxy, seen when the universe was only 10 percent of its current age, challenges the traditional models of galaxy ...
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 ...
Friday April 24 was China’s “Space Day,” celebrated on the 50-year anniversary of its first satellite launch. This past Friday, China marked the occasion with the announcement of the name for their first Mars Lander: Tianwen. According to China’s National Space Administration (CNSA), Tianwen translates to “Quest for Heavenly Truth.” China is enjoying the success ...
Sometime in 2020, NASA will launch a mission to Mars that is scheduled to land the Perseverance rover on the red planet by the following year. The mission is aimed at exploring the ancient environment of Mars and researching its geological processes as well as determining its past habitability. The rover will be carrying NASA’s ...
Using the data obtained by the Five-hundred-meter Aperture Spherical radio Telescope (FAST), a research team led by Prof. Pan Zhichen and Prof. Li Di from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) discovered an eclipsing binary millisecond pulsar in Globular Cluster (GC) Messier 92 (M92). Named PSR J1717+4307A or M92A, it ...
A lot of our notions about space are based on the concept of gravity, or more accurately our current understanding of it. Our understanding of gravity until the late 1990s was that gravity attracts things, holds things together, and in a way, stabilizes the universe as a whole. It was in 1998 that scientists stumbled ...
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