2023年10月17日 PDS 70: Disk, Planets, and Moons Image Credit: ALMA (ESO/NAOJ/NRAO); M. Benisty et al. Explanation: It’s not the big ring that’s attracting the most attention. Although the big planet-forming ring around the star PDS 70 is clearly imaged and itself quite interesting. It’ […]
A SpaceX Falcon Heavy rocket with the Psyche spacecraft onboard is launched from Launch Complex 39A, Friday, Oct. 13, 2023, at NASA’s Kennedy Space Center in Florida. NASA’s Psyche spacecraft will travel to a metal-rich asteroid by the same name orbiting the Sun between Mars and Jupiter to study its
2023年10月16日 Eclipse Rings Image Credit & Copyright: Jerry Zhang (left), Baolong Chen (photographer) & Amber Zhang (right) Explanation: She knew everything but the question. She was well aware that there would be a complete annular eclipse of the Sun visible from their driving destination:
2023年10月14日 Circular Sun Halo Image Credit & Copyright: Vincenzo Mirabella Explanation: Want to see a ring around the Sun? It’s easy to do in daytime skies around the world. Created by randomly oriented ice crystals in thin high cirrus clouds, circular 22 degree halos are visible much mor
2023年10月13日 Hydrogen Clouds of M33 Image Credit & Copyright: Reinhold Wittich Explanation: Gorgeous spiral galaxy Messier 33 seems to have more than its fair share of glowing hydrogen gas. A prominent member of the local group of galaxies, M33 is also known as the Triangulum Galaxy and lies a m
A SpaceX Falcon Heavy rocket with the Psyche spacecraft onboard is seen as it is rolled out of the horizontal integration facility on Oct. 10, 2023, at NASA’s Kennedy Space Center in Florida as preparations continue for the Psyche mission. NASA’s Psyche spacecraft will travel to a metal-rich asteroi
2023年10月12日 Mu Cephei Image Credit & Copyright: David Cruz Explanation: Mu Cephei is a very large star. An M-class supergiant some 1500 times the size of the Sun, it is one of the largest stars visible to the unaided eye, and even one of the largest in the entire Galaxy. If it replaced the Sun
NASA, ESA, Space Telescope Science Institute/J. Lee; Processing: NASA/Catholic University of America/Gladys Kober It’s easy to get swept up in the swirling starry arms of this intermediate spiral galaxy, NGC 4654, in the constellation Virgo. The galaxy has a bright center and is labeled “intermediat
NASA从太空采集并带回地球的45亿年前的小行星贝努（Bennu）样本的初步研究显示，该样本含有高碳含量和水的证据，这可能表明，在这块岩石中可能发现了地球上生命的基本组成部分。
