1. The Earth is a very small stage in a vast cosmic arena.

2. New data show that their cosmic observations no longer back up that conclusion, they say.

3. The finding suggests that life on Earth may be in the cosmic scheme of things, researchers said.

4. The Earth is a very small stage in a vast, cosmic arena.

5. What cosmic event could release such an intense burst of radio waves?

6. Not all researchers are convinced that cosmic rays play a role in generating lightning.

7. Because red dwarf stars live so long, the probability of cosmic life grows over time.

8. Kaplan and colleagues were able to find this cosmic gem because it has a more conspicuous companion.