保护地球，探索宇宙，发现文明
2023年9月18日 The Red Sprite and the Tree Credit & Copyright: Maxime Villaeys Explanation: The sprite and tree could hardly be more different. To start, the red sprite is an unusual form of lightning, while the tree is a common plant. The sprite is far away — high in Earth’s atmosphere, while the tree is nearby — only about a football fie...
2023年6月25日 Lightning on Jupiter Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Kevin M. Gill Explanation: Does lightning occur only on Earth? No. Spacecraft in our Solar System have detected lightning on other planets, including Mars, Jupiter and Saturn, and lightning is likely on Venus, Uranus, and Neptune. Lightning is a sudden rush o...
2023年4月17日 ELVES Lightning over Italy Image Credit & Copyright: Valter Binotto Explanation: What’s that red ring in the sky? Lightning. The most commonly seen type of lightning involves flashes of bright white light between clouds. Over the past 50 years, though, other types of upper-atmospheric lightning have been confirmed, including red sprites...
2022年9月19日 Star Trails and Lightning over the Pyrenees Image Credit & Copyright: Marc Sellés Llimós Explanation: The beauty in this image comes in layers. On the bottom layer is the picturesque village of Manlleu in Barcelona, Spain. The six-minute exposure makes car lights into streaks. The next layer is a mountain — Serra de Bellmunt — of ...
2022年9月12日 Red Sprite Lightning over the Czech Republic Image Credit & Copyright: Daniel Ščerba Explanation: What are those red filaments in the sky? They are a rarely seen form of lightning confirmed only about 35 years ago: red sprites. Research has shown that following a powerful positive cloud-to-ground lightning strike, red sprites may start as 100...
2021年9月29日 Gigantic Jet Lightning from Puerto Rico Video Credit & Copyright: Frankie Lucena Explanation: Have you ever seen a gigantic jet? They are extremely rare but tremendously powerful. Gigantic jets are a type of lightning discharge documented only this century that occur between some thunderstorms and the Earth’s ionosphere high above them....
2021年05月24日 Lightning Eclipse from the Planet of the Goats Image Credit & Copyright: Chris Kotsiopoulos (GreekSky) Explanation: Thunderstorms almost spoiled this view of the spectacular 2011 June 15 total lunar eclipse. Instead, storm clouds parted for 10 minutes during the total eclipse phase and lightning bolts contributed to the dramatic sky. Capture...
2021年05月10日 Lightning and Orion Beyond Uluru Image Credit & Copyright: Park Liu Explanation: What’s happening behind Uluru? A United Nations World Heritage Site, Uluru is an extraordinary 350-meter high mountain in central Australia that rises sharply from nearly flat surroundings. Composed of sandstone, Uluru has slowly formed over the past 300 m...
2021年03月30日 Red Sprite Lightning over the Andes Image Credit & Copyright: Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN) Explanation: What are those red filaments in the sky? They are a rarely seen form of lightning confirmed only about 30 years ago: red sprites. Recent research has shown that following a powerful positive cloud-to-ground light...
2020年9月27日 Lightning over Colorado Image Credit & Copyright: Joe Randall Explanation: Have you ever watched a lightning storm in awe? Join the crowd. Oddly, details about how lightning is produced remains a topic of research. What is known is that updrafts carry light ice crystals into collisions with larger and softer ice balls, causing the smaller cry...