Led by University of Sydney astronomer Professor Tim Bedding, astronomers have for the first time detected regular pulsations in a class of stars known as delta Scutis. These intermediate-sized stars tend to be young and hang around in associations, exhibiting poor 'social distancing.' Astronomers used data from NASA's TESS space telescope.
Researchers at UC Santa Cruz have developed a powerful new computer program called Morpheus that can analyze astronomical image data pixel by pixel to identify and classify all of the galaxies and stars in large data sets from astronomy surveys. Morpheus is a deep-learning framework that incorporates a variety of artificial intelligence technologies developed for applications such as image and speech recognition.
In February and July of 2019, the Hayabusa2 spacecraft briefly touched down on the surface of near-Earth asteroid Ryugu. The readings it took with various instruments at those times have given researchers insight into the physical and chemical properties of the 1-kilometer-wide asteroid. These findings could help explain the history of Ryugu and other asteroids, as well as the solar system at large.
This randomized clinical trial looked at the effect of a face-aging mobile app on daily sunscreen use and other skin protection among teens in Brazil. Selfies of students were altered to show UV effects on their future faces and shown to their class, accompanied by information about sun protection. Reducing UV exposure in children and adolescents is important because of the increased risk of skin cancer with cumulative UV exposure and sunburns early in life.
Senior Research Associate Margarita Sharina (Special Astrophysical Observatory) and Associate Professor Vladislav Shimansky (Kazan Federal University) studied the globular cluster NGC 6652.4.05957 and found out that its age is close to 13.6 billion years, which makes it one of the oldest objects in the Milky Way.
To help future scientists make sense of what their telescopes are showing them, Cornell University astronomers have developed a spectral field guide for rocky worlds orbiting white dwarf stars.
An international team of astronomers has captured fifteen images of the inner rims of planet-forming disks located hundreds of light years away. These disks of dust and gas, similar in shape to a music record, form around young stars. The images shed new light on how planetary systems are formed.
By analyzing the brightness variations of 369 solar-like stars, researchers have concluded that the sun is less magnetically active and shows less variability in its brightness than similar stars in the galaxy.
By cosmic standards the sun is extraordinarily monotonous. This is the result of a study presented by researchers from the Max Planck Institute for Solar System Research in the upcoming issue of Science. For the first time, the scientists compared the sun with hundreds of other stars with similar rotation periods. Most displayed much stronger variations. This raises the question whether the sun has been going through an unusually quiet phase for several millennia.
The universe is full of billions of galaxies--but their distribution across space is far from uniform. Why do we see so much structure in the universe today and how did it all form and grow? A 10-year survey of tens of thousands of galaxies provided a new approach to answering this fundamental mystery.