Gamma-Ray Bursts - Gamma-Ray Words

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<table>
<tr><td>Across</td> <td>Down</td></tr>
<tr><td>3. unit used to measure distances in space</td><td>1. gamma-rays
coming up from Earth have been detected during this severe weather
occurrence</td></tr>

<tr><td>5. GRBs were first detected by satellites looking for ___________
__________ Ban Treaty violations</td><td>2. scientists estimate the Sun's
lifetime as ten __________ __________</td></tr>

<tr><td>7. average number of GRBs detected daily by satellites</td><td>
4. GRBs are the most powerful ___________ in the Universe</td></tr>

<tr><td>10. a redshift indicates movement in this direction from Earth</td>
<td>6. Cygnus X-1 is an example of one found in our Galaxy</td></tr>

<tr><td>11. acronym for Burst and Transient Source Experiment</td><td>8.
an object related to a GRB which is discovered by its emission at</td></tr>

<tr><td>12. branch of astronomy dealing with behavior and physical characteristics
of heavenly bodies</td><td>9. decade in which GRBs were first discovered</td>
</tr>

<tr><td>13. satellite planned for launch in year 2003 to study GRBs</td><td>
9. decade in which GRBs were first discovered</td></tr>

<tr><td>14. optical flash and emission of X-rays occuring immediately after a
GRB</td><td> </td></tr>
</table>

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