After bloody battles in Virginia's wilderness, at Spotsylvania, and Cold Harbor, and Sherman's march through Georgia, the war stalled in a siege of Petersburg, Virginia.

Two new studies, one purely theoretical and the other focused on a known exoplanet, suggest that planets that would on first blush seem too cold to harbor life may be balmier than expected.

He inspected the archives shortly after Dr. Brenner donated them to Cold Spring Harbor.