News
- Health & Medicine
Replacing microRNA for cancer treatment
Replacing missing microRNAs in cancer cells may open up a new field for cancer treatment.
- Health & Medicine
Stressed-out DNA turns mousy brown hair gray
Scientists show how change happens when cells responsible for colorful hair lose their self-renewing abilities.
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- Space
Betelgeuse shrinks
A familiar star, visible to the naked eye, has shrunk dramatically in just 15 years.
- 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.
