News in Brief
- Archaeology
Texas toolmakers add to the debate over who the first Americans were
Stone toolmakers inhabited Texas more than 16,000 years ago, before Clovis hunters arrived.
- Climate
Bloodflowers’ risk to monarchs could multiply as climate changes
High atmospheric carbon dioxide levels can weaken the medicinal value of a milkweed that caterpillars eat, and high temperatures may make the plant toxic.
- Life
Bobtail squid coat their eggs in antifungal goo
Hawaiian bobtail squid keep their eggs fungus-free with the help of bacteria.
- Neuroscience
Vaginal microbes in mice transfer stress to their pups
During birth, microbes from a stressed mouse mother can carry some aspects of stress to her offspring.
- Astronomy
Astronomers snap the first baby pictures of a planet
New telescope images give the clearest view of an exoplanet embryo yet.
- Archaeology
Mongolians practiced horse dentistry as early as 3,200 years ago
Horse dentistry got an early start among Bronze Age Mongolian herders.
- Life
Zika gets the most extreme close-up of any flavivirus
The closest look yet at Zika virus may reveal some vulnerabilities.
- Neuroscience
Watch the brain jiggle with each heartbeat
A new twist on MRI can reveal how the brain wiggles.
- Life
Here’s how drinking coffee could protect your heart
Coffee’s heart-healthy effects rely on boosting cells’ energy production, a study in mice suggests.
- Physics
Einstein’s general relativity reigns supreme, even on a galactic scale
Scientists have made the most precise test of Einstein’s theory of gravity at great distances.
- Astronomy
Swirling gases reveal baby planets in a young star’s disk
A new technique pinpointed three planets forming around a young star about 330 light-years from Earth.
- Planetary Science
The Mars rover Opportunity is sleeping, not dead, NASA says
Opportunity is hunkered down in a deep sleep on Mars to ride out what’s looking to be a long dark dust storm.
