保护地球, 探索宇宙, 发现文明
2021年8月24日 PDS 70: Disk, Planets, and Moons Image Credit: VLT/MUSE (ESO); M. Benisty et al. Explanation: It’s not the big disk that’s attracting the most attention. Although the big planet-forming disk around the star PDS 70 is clearly imaged and itself quite interesting. It’s also not the planet on the right, just inside the big disk, that...
2021年06月22日 HD 163296: Jet from a Star in Formation Image Credit: Visible: VLT/MUSE (ESO); Radio: ALMA (ESO/NAOJ/NRAO) Explanation: How are jets created during star formation? No one is sure, although recent images of the young star system HD 163296 are quite illuminating. The central star in the featured image is still forming but seen already surrounded by...
2020年9月29日 GW Orionis: A Star System with Tilted Rings Animation Illustration Credit: ESO, U. Exeter, S. Kraus et al., L. Calçada Explanation: Triple star system GW Orionis appears to demonstrate that planets can form and orbit in multiple planes. In contrast, all the planets and moons in our Solar System orbit in nearly the same plane. The picturesque syste...