Uncategorized
- Astronomy
NASA unveils space suit fit for Mars
NASA’s newly revealed Z-2 space suit is the second mock-up of a suit that NASA hopes will eventually protect explorers walking on Mars or drilling into an asteroid.
By Andrew Grant - Astronomy
Star-eating star spotted
The first Thorne-Żytkow Object, a strange pair of stars where one engulfs the other, has been discovered.
- Animals
Mysterious neurotoxin may help flatworms kill prey
Tetrodotoxin, the deadly chemical in pufferfish, could help flatworms transform their earthworm prey into puddles of goo.
By Beth Mole - Science & Society
Scientists have long had one of the most admired careers
Excerpt from the July 11, 1964, issue of Science News Letter.
- Neuroscience
Busy brain hubs go awry in disorders, study suggests
Schizophrenia, Alzheimer’s and other brain disorders may occur when the brain’s most active hubs are damaged.
- Life
HIV hides in growth-promoting genes
The discovery that HIV can trigger infected cells to divide means scientists may need to rethink strategies for treating the virus that causes AIDS.
- Health & Medicine
Hidden heart rhythm problem may underlie some strokes
In two clinical studies, people who had had strokes with no trigger sometimes also had undiagnosed atrial fibrillation.
By Nathan Seppa - Astronomy
Rare trio of supermassive black holes found
Three supermassive black holes residing where two distant galaxies collide offer new clues about where to look for gravitational waves.
- Science & Society
Weapon inspection scheme would test for nukes but keep designs secret
Technique borrowed from computer science could improve weapon verification and encourage countries to agree to nuclear disarmament.
By Andrew Grant - Animals
Lionfish dance can recruit partner for hunting
Slow but superb predators recruit pals for cooperative hunting, often striking in what looks like well-mannered turn taking.
By Susan Milius - Astronomy
Milky Way galaxy’s dust clouds shown in 3-D map
A new three-dimensional map of interstellar dust in the Milky Way wraps 180 degrees around the sky and extends over 16,000 light-years from Earth.
- Health & Medicine
Junk food ahead of pregnancy may harm baby-to-be
Women who have poor diets in the year before conception might have a higher risk of delivering a baby preterm than do women who eat healthful foods
By Nathan Seppa