World & Nation
Education: Students spend summer working with research tools and methods in laboratories. National Science Foundation set up program.
Aug. 24, 1997
Researchers trying to learn what killed the first person to receive a pig heart transplant have found the organ harbored an animal virus.
May 6, 2022
AIDS is spreading fast among males in their teens and early 20s who have homosexual encounters, even though they grew up amid widespread awareness of ways to avoid the lethal virus, a study found.
Feb. 11, 1996
Science & Medicine
Biotech: A Maryland firm’s rights to commercial use of a human gene helpful in AIDS therapy--a link it was unaware of--have raised fears drug development will be slowed.
Feb. 28, 2000
Business
C. T.
May 20, 1990
U.S. doctors have transplanted a pig heart into a patient in a last-ditch effort to save his life — a first for medical science.
Jan. 10, 2022
At the Arlington Echo Outdoor Education Center, the smell of pine, maple and the Severn River envelops the rough-hewn cabins that dot the 23-acre retreat in central Anne Arundel County.
Dec. 18, 1988
Opinion
Trump preys upon a cognitive bug in our brains that scientists are just starting to understand — the psychology of overestimating perceived threat.
Sept. 16, 2019
Greenspace
This article was originally on a blog post platform and may be missing photos, graphics or links.
June 14, 2010
California
The amount of salt dissolved in streams in the Northeast is rising, and chemicals used to clear snow and ice from the roads are being blamed.
Sept. 6, 2005