"What scientific instruments on board space craft could be used to examine if a planet, or moon could sustain life and how would they do it? "
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Question
Has earth been hit by any meteors?
The Earth is hit by millions of meteors every day; you can see a few of them as "shooting stars" on any clear night if you look carefully. At least once a week we encounter a meteor big enough to reach the surface, at which point it is called a meteorite. Tons of meteoritic material strike the Earth every year. If you are also interested in collisions with larger comets and asteroids, I recommend the NASA impact hazard website at
May 8, 2003
- How frequently are questions answered?
- I asked a question but there was no answer?
- Who is the Astrobiologist answering these questions?
- Will I get an email when my question is answered?
- What college courses should I take to become an astrobiologist?
- How can I get a job as an astrobiologist at NASA?
- Have aliens visited Earth? Are UFOs real?
- Is there a planet or brown dwarf called Nibiru or Eris that is approaching the Earth and threatening our planet with widespread destruction?
- Is it true that the Sun will be in the center of the Milky Way Galaxy in December 2012 and that this will cause a pole shift and massive destruction.
- Has NASA discovered life on other worlds?
- Astrobiology Career Path Suggestions
