News
- Health & Medicine
Tuberculosis bacterium subverts basic cell functions
The tuberculosis microbe makes compounds that alter basic systems inside key immune cells, facilitating the bacterium’s survival in the body, new research shows.
- Planetary Science
Solar system’s future could be bumpy
A new study assesses the chances that two planets will collide or a planet will plunge into the sun in the next 5 billion years.
- Astronomy
Pinning down a pulsar’s age
Reporting at a meeting of the American Astronomical Society, researchers suggest some of these swirling stellar remnants are older, younger by a factor of 10.
- Life
Hummingbird pulls Top Gun stunts
Male hummingbirds set record for extreme plunges out of the sky.
- Space
Galactic black holes may be more massive than thought
The giant black holes at the cores of massive nearby galaxies may be two to four times heftier than estimated.
- Earth
When the Great Lakes were lower
New archaeological evidence shows signs of prehistoric hunting and other human activities on now-submerged portions of Lake Huron.
- Physics
Friction gives snakes a smooth slither
Combination of friction and push propels snakes forward on flat surfaces.
- Humans
Children get social with virtual peers
Life-size 3-D versions of children can draw kids with autism into social encounters and more news from the annual meeting of the Jean Piaget Society in Park City, Utah, June 4-6.
- Humans
Autism care takes biological toll on mothers
Caring for teens and young adults with autism not only creates intense psychological pressure on mothers but may promote sharply decreased production of a crucial stress hormone, a long-term study suggests.
- Ecosystems
From sea to squid, thanks to slime
Scientists have revealed new details about the genes — and the goo — that enable luminescent bacteria to colonize their symbiotic marine partner.
- Chemistry
Protein caught in the act
Researchers have developed a new way to see where the molecules are active.
- Earth
Unexplained atmospheric chemistry detected
A field study in China reveals an unusually high and unexplained production of hydroxyl radicals.
