Chemistry
Beets bleed red but a chemistry tweak can create a blue hue
A new blue dye derived from beet juice might prove an alternative to synthetic blue dyes in foods, cosmetics or fabrics.
All Topics
Chemistry
Earth
Environment
A year long expedition spotlights night life in the Arctic winter
Scientists anchored to an ice floe near the North Pole are investigating how life survives polar night and what changes will occur as the Arctic continues to warm.
Humans
Health & Medicine
Can plasma from recovered COVID-19 patients treat the sick?
Researchers are racing to set up clinical trials of antibody-rich convalescent plasma from recovered patients to treat or prevent COVID-19.
Life
Environment
A year long expedition spotlights night life in the Arctic winter
Scientists anchored to an ice floe near the North Pole are investigating how life survives polar night and what changes will occur as the Arctic continues to warm.
Math
Science & Society
The U.S. has resisted the metric system for more than 50 years
Australia adopted the metric system 50 years ago. The United States tried by passing legislation for a voluntary conversion that was largely ignored.
Physics
Space
Red giant stars that eat planets might shine less brightly
Some stars may shine less brightly after ingesting a planet. That finding, if confirmed, could have implications for calculating cosmic distances.
Science & Society
Science & Society
The U.S. has resisted the metric system for more than 50 years
Australia adopted the metric system 50 years ago. The United States tried by passing legislation for a voluntary conversion that was largely ignored.
Space
Space
New search methods are ramping up the hunt for alien intelligence
Six decades of radio silence hasn’t stopped scientists searching for intelligent life beyond Earth. In fact, new technologies are boosting efforts.
Tech
Space
New search methods are ramping up the hunt for alien intelligence
Six decades of radio silence hasn’t stopped scientists searching for intelligent life beyond Earth. In fact, new technologies are boosting efforts.
