David Shiga's Articles
- FeatureA study of galaxy clusters tests whether dark matter particles can collide with each other, while other observations show that dark matter doesn't behave as expected near the centers of galaxies.
- NewsA relatively safe region within the seas of radiation that surround Earth owes its existence to lightning storms.
- NewsResearchers have devised a way to pinpoint leaks in spacecraft by listening to ultrasound waves traveling through the ship's hull.
- NewsX rays emanating from Jupiter's midriff actually originate on the sun, new observations show.
- Food for ThoughtLiving in space punishes the body as much as smoking a pack of cigarettes a day, says a new study of astronaut health and nutrition.
- NewsAstronomers have found the earliest traces of galaxy clustering, from a period just 1 billion years after the birth of the universe.
- NewsAstronomers say they have found the only known galaxy devoid of stars.
- FeatureTools from molecular biology are providing new insights into the viruses employed by parasitoid wasps to manipulate their caterpillar hosts.
- NewsAn experimental test predicts which breast tumors will spread rapidly without treatment and which are likely to be less aggressive by tracking the activity of genes normally involved in mending injured tissue.
- NewsA new test that detects very low levels of protein clumps associated with Alzheimer's may provide an early warning for the disease.