此内容来自第三方平台 (Dailymotion)。如果此视频侵犯了您的版权，请使用 立即删除 工具。
Light pollution
描述
One third of stargazers around the world can't see the Milky Way at night because of "light pollution" from buildings, street lamps and other forms of artificial illumination on Earth. The night time glow of artificial lights used to be a nuisance mainly affecting astronomers, but in recent years the effects are being felt by casual observers of the night sky as well.VIDEOGRAPHIC
相关视频
Space Pollution | Causes and Solution To Space Pollution | Space Pollution 's effects on environment
Green TV India
Environment motion graphics
Environment
The Planet Earth Astronomy and Space for Kids|Scientific Information|ABC Motion
ABC Motion
Planet Earth Astronomy and Space for Kids|Scientific Information|ABC Motion
ABC Motion
Best Luna Moon Light Lamp for Magic, Astronomy & Space Lovers
Meditationtalks
Neon Light Dance | Motion Graphics | Files - Videohive
New Project After Effects 2014
来自同一上传者
ANIMATED MAP: 40 years of monthly temperature anomalies
102 次观看
Greta Thunberg says she was 'kidnapped' in international waters by Israel
66 次观看
Relatives struggle to find last 1,000 Srebrenica victims 30 years on
43 次观看
Reform UK will 'win the next general election' says new party chairman
28 次观看
Australian journalist shot by rubber bullet during LA protests
0 次观看
Former Israeli PM Olmert says Netanyahu has 'failed completely'
27 次观看