保护地球，探索宇宙，发现文明
2022年4月26日 Planet Parade over Sydney Opera House Image Credit & Copyright: Prasun Agrawal Explanation: The world is waking up to a picturesque planet parade. Just before dawn, the eastern skies over much of planet Earth are decorated by a notable line of familiar planets. In much of Earth’s northern hemisphere, this line of planets appears most ne...
2022年1月18日 From Orion to the Southern Cross Image Credit & Copyright: Lucy Yunxi Hu Explanation: This is a sky filled with glowing icons. On the far left is the familiar constellation of Orion, divided by its iconic three-aligned belt stars and featuring the famous Orion Nebula, both partly encircled by Barnard’s Loop. Just left of center in the f...
2020 June 29 Dark Sky Reflections Image Credit & Copyright: Will Godward Explanation: When the lake calmed down, many wonders of the land and sky appeared twice. Perhaps the most dramatic from the dark sky was the central band of our Milky Way Galaxy, visible as a diagonal band. Toward the right were both the Small (SMC) and Large (LMC) Magellanic Cloud...
在过去的一周里，发生了两起壮观的景象：巨大的火球划过了澳大利亚的上空。经过美国航空航天局（NASA）的证实，一颗“调皮的”流星与澳大利亚的海岸来了次亲密接触，最终落入了大澳大利亚湾（Great Australian Bight）的水域之中，威力与小型核弹相近。 第一起“火球事件”发生在5月20日周一的凌晨，横跨了澳大利亚的整个北领地（Northern Territory），在泰能特溪（Tennant Creek）和爱丽斯泉（Alice Springs）都能看到（这两个地方相距500多千米）。第二起发生在两天之后，划过了南澳大利亚和维多利亚州的上空。 点亮南阿德莱德医院上空的巨大火球。当火球炸裂时，小小的白绿色光猛然变成一个巨大的橙色火焰球。 来源：theconversation.com 根据NASA的近地天体研...