ls99
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
- Joined
- May 2, 2008
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FOXNews.com - Strange Green Comet Passing by Earth Next Week - Science News | Science & Technology | Technology News
An odd, greenish backward-flying comet is zipping by Earth this month,
How can a comet be said to be backward flying? As far as I know they have no internal propulsion systems. No friction in outer space to determine aerodynamics. How is front or back identified on a comet?
An odd, greenish backward-flying comet is zipping by Earth this month,
How can a comet be said to be backward flying? As far as I know they have no internal propulsion systems. No friction in outer space to determine aerodynamics. How is front or back identified on a comet?