1.   Scientists have described the discovery as a major breakthrough.

2.   As Kohler described the discovery several years later, he prepared the cells and went home for dinner, waiting three hours for the test to develop.

3.   Astronomers from the California Institute of Technology in Pasadena and Johns Hopkins University in Baltimore described the discovery Wednesday at NASA headquarters in Washington.

4.   A month after Lozano described the discovery of the body as a step forward in the Ruiz Massieu investigation, he was fired for incompetence.

5.   Mehta described his discovery with such ebullience that it seemed he might burst into song by way of demonstration at any moment.

6.   Papers describing these discoveries have appeared in several prestigious scientific journals.

7.   The discovery was described at a conference on extra-solar planets at the Carnegie Institution in Washington.

8.   The discovery will be described on Monday evening in Oakland at an Institute of Electrical and Electronics Engineers symposium on security and privacy.

9.   The researchers, who described the discovery in Nature, say that it points out the need for full-sky comet surveys.

10.   Astronomers who specialize in cosmic dust described the discovery as spectacular.