Researchers using the array will be able to study the gamma rays in the sky with the sensitivity 10 times better than currently achieved. This will help to address some of the most important and perplexing questions in very-high-energy astrophysics.
Margaret Kivelson, who discovered an ocean inside Jupiter’s moon Europa and a magnetic field generated by neighboring Ganymede, has been awarded the Royal Astronomical Society’s 2019 Gold Medal.
Surprising observation might reveal what the sun was like when it formed
Galaxies are often thought of as sparkling with stars, but they also contain gas and dust. Now, a team led by UCLA astronomers has used new data to show that stars are responsible for producing dust on galactic scales, a finding consistent with long-standing theory.
UCLA astronomers have made the first accurate measurement of the abundance of oxygen in a distant galaxy. Oxygen, the third-most abundant chemical element in the universe, is created inside stars and released into interstellar gas when stars die.
For years, astronomers have been puzzled by a bizarre object in the center of the Milky Way that was believed to be a hydrogen gas cloud headed toward our galaxy’s enormous black hole.