How to Use "comet" with Example Sentences

1. Some even think a comet did them in .

2. The comet is already visible in 7x50 binoculars .

3. If so , life may have started in a comet .

4. Astronomers proposed comet impacts as a possible cause for these catastrophes .

5. Researchers believe other comets are chemically similar to halley 's comet .