TOI 700, a planetary system 100 light-years away in the constellation Dorado, is home to TOI 700 d, the first Earth-size habitable-zone planet discovered by NASA’s Transiting Exoplanet Survey Satellite. Credit: NASA’s Goddard Space Flight Center TESS, the Transiting Exoplanet Survey Satellite, was launched in 2018 with the goal of […]

Super Heavyweight and Flyweight in a Cosmic Dance Volunteer distributed computing project Einstein@Home discovers neutron star in unusual binary system. After more than two decades, an international research team led by the Max Planck Institute for Gravitational Physics (Albert Einstein Institute; AEI) in Hannover has identified a Galactic “mystery source” of gamma rays: a […]

Composite image showing Jupiter’s moon Io in radio (ALMA), and optical light (Voyager 1 and Galileo). The ALMA images of Io show for the first time plumes of sulfur dioxide (in yellow) rise up from its volcanoes. Jupiter is visible in the background (Hubble). Credit: ALMA (ESO/NAOJ/NRAO), I. de Pater […]

Stars identified in the research have formed “shell structures” in the aftermath of a radial merger occurring 3-billion years ago. Credit: Rensselaer Polytechnic Institute Evidence of broadside collision with dwarf galaxy discovered in Milky Way. Nearly 3 billion years ago, a dwarf galaxy plunged into the center of the Milky Way […]

Andrea Ghez. Credit: Christopher Dibble/UCLA Andrea Ghez (Caltech MS ’89, PhD ’92), the Lauren B. Leichtman and Arthur E. Levine Professor of Astrophysics at UCLA, has won the 2020 Nobel Prize in Physics for pioneering research that helped reveal a supermassive black holelurking at the center of the Milky Way galaxy. She shares […]

Artist’s impression of black hole jets. Credit: NASA/CXC/M. Weiss Some supermassive black holes launch powerful beams of material, or jets, away from them, while others do not. Astronomers may now have identified why. Using data from NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton, Germany’s ROentgen SATellite (ROSAT), the NSF’s Karl G. Jansky Very Large […]

Image and amplification (in color) of the ultra-diffuse galaxy Dragonfly 44 taken with the Hubble space telescope. Credit: Teymoor Saifollahi and NASA/HST At present, the formation of galaxies is difficult to understand without the presence of a ubiquitous, but mysterious component, termed dark matter. Astronomers have measure how much dark […]

A panoramic view of the nearby Alpha Persei star cluster and its corona. The member stars in the corona are invisible. These are only revealed thanks to the combination of precise measurements with the ESA Gaia satellite and innovative machine learning tools. Credit: © Stefan Meingast, made with Gaia Sky […]