News
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Bacterial genes and cell scaffolding
A bacterium may have revealed the origin of a key cell structure.
- Astronomy
Seeing Red: A cool revival of Hubble’s infrared camera
New images provide a graphic demonstration that the Hubble Space Telescope's infrared vision has been restored.
- Health & Medicine
Efficient Germ: Human body boosts power of cholera microbe
Some genes in the cholera-causing bacterium Vibrio cholerae are activated and others are silenced when the microbe passes through the human gut, changes that make the bacterium more virulent.
- Ecosystems
Plight of the Iguanas: Hidden die-off followed Galápagos spill
Residues of oil spilled in the Galapágos Islands in January 2001 may have caused a 60 percent decline in one island's colony of marine iguanas.
- Health & Medicine
Transplant Triumph: Cloned cow kidneys thrive for months
Cow kidneys and other tissue made by cloning ward off immune rejection after transplantation into cows.
- Astronomy
Rare Find: Odd type of ammonia detected in space
The discovery of deuterated ammonia in space could help astronomers better understand the complex chemistry of dark clouds in star-forming regions.
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Wayward Moods: Bipolar kids travel tough road to teenhood
Children diagnosed with bipolar disorder, a psychiatric ailment characterized by severe mood swings, exhibit a depressingly poor response to standard drug treatments and psychotherapy.
- Planetary Science
Odyssey’s Homer: Hints of water near both poles of Mars
Sensors on board the Mars Odyssey spacecraft have spied strong signs of ice buried near both poles of the Red Planet, exactly the regions where scientists previously had said that such frozen water deposits could exist.
- Health & Medicine
Dieting woes tied to hunger hormone
A rise in the appetite-enhancing hormone ghrelin after weight loss may explain why dieters regain pounds.
- Health & Medicine
Arthritis drug fights Crohn’s disease
The inflammation-fighting drug infliximab can hold off the painful symptoms of Crohn's disease for as long as a year in many patients.
- Health & Medicine
Operation overload: Kids’ backpacks
Sixth-graders in Italy routinely carry school backpacks that equal, on average, 22 percent of their body weight, a finding researchers link to an earlier report that more than 60 percent of children in this age group had experienced low-back pain more than once.
- Health & Medicine
Hysterectomy often improves sex life
A study of more than 1,000 women who had hysterectomies finds that after the operation, women generally wanted and had sex more often, were more likely to reach orgasm, experienced less vaginal dryness, and were less likely to have pain during sex than was the case before surgery.
