Science & Tech
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What happened when a meteorite the size of four Mount Everests hit Earth?
Giant impact had silver lining for life, according to new study
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When we say ‘smart,’ what do we mean?
Computer scientist says we should shift focus to ‘educability’
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How to apply cool-headed reason to red-hot topics
Michael J. Sandel brings back wildly popular ‘Justice’ course amid time of strained discourse on college campuses
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Big discovery about microscopic ‘water bears’
Bit of happenstance, second look at ancient fossils leads to new insights into evolution of tardigrade, one of most indestructible life forms on planet
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The making of the gut
Studies connect genetics, physics in embryonic development
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How whales and dolphins adapted for life on the water
Backbones of ocean-dwelling mammals evolved differently than those of species living closer to shore, study finds
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Dark night sky tells us about structure and formation of solar system
The darkness of the night sky is one of astronomy’s great puzzles. An infinite universe uniformly filled with stars and galaxies should produce an infinitely bright night sky, Johannes Kepler…
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Harvard researchers stop, restart, light
Albert Einstein theorized that light cannot travel faster than 186,282 miles per second. But he never said it couldn’t go slower. Lene Hau, a physics professor in the Faculty of…
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High school dropouts concentrated in 35 cities
The nation’s high school dropout problem is most desperate in between 200 to 300 schools in the 35 largest cities in the U.S. The cities are Indianapolis, Detroit, Cleveland, San…
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Marine science expert monitoring Boston Harbor pollution
Harvard researcher James Shine is currently researching pollutants in the sediment of Boston Harbor and other harbors. He is crafting criteria for the Environmental Protection Agency that would measure pollution…
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Soft news and critical journalism eroding audiences
A rise in soft news and critical journalism “may now be hastening the decline in news audiences” and “weakening the foundation of democracy by diminishing the public’s information about public…
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Accurately measuring socioeconomic differences, health disparities
For more than two years, Nancy Krieger and her colleagues have worked with approximately 1 million records from databases of the Massachusetts and Rhode Island Departments of Public Health as…
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Uncovering new evidence for ‘event horizons’ surrounding black holes
With results that fundamentally differ from earlier black hole studies, Harvard researchers have shown that some recently discovered black holes are not only ultra-dense, but actually possess event horizons that…
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One in three Massachusetts workers ill-equipped to meet demands
The most startling finding of a new report is that 667,000 of 1.1 million at-risk workers in Massachusetts have earned a high school credential but still lack basic math, reading,…
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How we talk can change the way we work
If we want a better understanding of the prospect of change, we first need a better way of seeing into our own powerful inclination NOT to change. Considering every workplace…
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Assessing globalization’s true impact
Joseph S. Nye Jr. and John D. Donahue of Harvard’s John F. Kennedy School of Government have examined all aspects of the globalization phenomenon in order to separate the facts…
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Telescope will look toward the edge of the universe
A mountaintop in Chile provides one of the best places on Earth to see light that has been traveling toward our world for billions of years. “It’s an inspiring place…
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What will it take to attract, and keep, new teachers?
In today’s expansive job market, with its escalating definition of a competitive salary, teaching is underpaid. Graduates are actively recruited to work in investment banking, consulting, and technology, where beginning…
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Environmental health researcher studies lead poisoning in India
Lead is a naturally occurring toxic element, and exposure poses a serious threat to children whose neurological systems are still developing. Some children suffer from brain damage, poor motor skills…
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Street vendors often define urban landscape
“The question is, how is public space to be created — by designers, by the state, or by the people who use it?” asks Margaret Crawford, a professor at the…
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Workers in buildings with less fresh air more likely to call in sick
Donald Milton, associate professor in the Department of Environmental Health at the Harvard School of Public Health, hypothesized that the nature of the air that employees breathe affects how often…
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Before- and after-school hours key to the nurturing of children
How to keep children occupied and engaged in worthwhile after-school pursuits is becoming a major focus of study at the Harvard Family Research Project at the Graduate School of Education.…
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How family leave policies fail working families
In her book, “The Widening Gap: Why American Working Families are in Jeopardy and What Can be Done About It,” S. Jody Heymann of the Harvard School of Public Health…
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Protecting nature religiously
“Our religious institutions are the only institutions that are not completely implicated in the culture of materialism and growth,” said Bill McKibben, an environmental activist and a fellow at Harvard…
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Researchers publish HIV study results despite efforts to block
Researchers refused to suppress publication of data that indicates an experimental drug did not slow the progression of HIV infection, even though the drug company that sponsored their research tried…
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Chandra X-ray Observatory helps put pieces together on gamma-ray bursts
Astronomers have long debated how gamma-ray bursts (or “GRBs”) originate. One theory contends that GRBs result when two “compact objects,” that is, neutron stars or black holes, collide and coalesce.…
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Does the Internet make markets more competitive?
According to Jeffrey Brown of Harvard’s John F. Kennedy School of Government, the Internet’s power to allow consumers to engage in low-cost price comparisons online has affected the market for…
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Better-quality child care has real effects
In a study, higher quality child care showed a positive relation to higher levels of social functioning in children both at school and at home. Those children who attended higher-level…
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Business professor works to unlock the mysteries of television viewing habits
Media consultants have spent years studying what convinces viewers to watch certain programs. While there are no purely empirical answers why certain programs are more popular than others, a new…
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Astronomers resolve visible blast wave from gamma-ray burst
Gamma-ray bursts (GRBs) are mysterious flashes of high-energy light that are detected about once a day somewhere in the sky. However, their origin remains unknown to astronomers, most of whom…
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Examining differing reproductive desires in Gambia
For men in rural Gambia, more than 15 kids are desirable. That’s double the number of children that women are actually delivering. The number may seem high to people in…
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Chandra clinches case for missing-link black hole
Using NASA’s Chandra X-ray Observatory, scientists have zeroed in on a mid-mass black hole in the galaxy M82. This black hole – located 600 light years away from the center…
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Cosmic ‘superbubbles’ bespeak toil and trouble
The merging Antennae Galaxies in constellation Corvus are producing massive bubbles of expanding X-ray-emitting gas at such astonishing rates that they are bumping into each other. Giuseppina Fabbiano, Andreas Zezas…
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Medical records play role in domestic violence legal cases
Two researchers studied nearly 100 medical charts of women who had previously been identified as abuse survivors. They found that physicians frequently did not screen for abuse and that the…
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Mystery of cometary X-rays solved
Comets, which resemble “dirty snow balls” a few miles in diameter, until recently were thought to be too cold to emit X-rays. So the detection of X-rays from comet Hyakutake…
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Fighting prostate cancer with radioactive seeds
In November 1997, a team of surgeons headed by Anthoy D’Amico, an associate professor of radiation oncology at Harvard Medical School, first used a technique that treats early stages of…