1 பருவம்
46 அத்தியாயம்
Crash Course Astronomy - Season 1 Episode 23
Today Phil helps keep you from ticking off an astronomer in your life by making sure you know the difference between a meteor, meteorite, and meteoroid. When the Earth plows through the stream emitted by a comet we get a meteor shower. Meteors burn up about 100 km above the Earth, but some survive to hit the ground. Most of these meteorites are rocky, some are metallic, and a few are a mix of the two. Very big meteorites can be a very big problem, but there are plans in the works to prevent us from going the way of the dinosaurs.
- ஆண்டு: 2015
- நாடு:
- வகை: Documentary
- ஸ்டுடியோ: YouTube
- முக்கிய சொல்: astronomy
- இயக்குனர்:
- நடிகர்கள்: Phil Plait
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