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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Benefits, risks and cost-effectiveness of early hepatitis C treatment uncertain
Hepatitis C virus (HCV) is a largely asymptomatic disease that after a long latency period, usually spanning decades, can damage the liver and eventually cause cirrhosis and liver cancer. While…
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State-of-the-art solar model tracks eruption
The Sun may appear to be a bright, steadily shining orb, but it is actually a seething cauldron of hot gases prone to violent eruptions. The most dramatic eruptions are…
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Millions of Americans suffer from major depression
A Harvard Medical School study found high rates of depression throughout the U.S. population. The researchers analyzed the depression of over 9,000 Americans and evaluated depression’s effect on daily activities…
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Harvard continues legacy of Cepheid discoveries
Cepheids are important to astronomers for their key role as extragalactic distance indicators. Cepheids are variable stars that regularly brighten and dim as they pulsate rhythmically. Their pulsation period is…
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Do we live in a “stop and go” universe?
At the 202nd meeting of the American Astronomical Society, Robert Kirshner (Harvard-Smithsonian Center for Astrophysics), on behalf of the international High-z Supernova Search Team led by Brian Schmidt (Mount Stromlo…
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Lung imaging method allows visualization of airways
A new dynamic imaging technique described by Mitchell Albert, Harvard Medical School assistant professor of radiology at Brigham and Women’s Hospital; Angela Tooker, MIT graduate student; Kwan Soo Hong, Harvard…
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Painting a new picture of how we learn to read
The research of Tami Katzir, an assistant professor at Harvard’s Graduate School of Education, centers on reading development and reading breakdown. Her interests revolve around three connected areas: The first…
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Global warming is not so hot
Scientists at the Harvard-Smithsonian Center for Astrophysics took a look at how weather has changed in the past 1,000 years. They looked at studies of changes in glaciers, corals, stalagmites,…
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Nanotechnology: Big issues from small stuff
Discoveries in nanotechnology could change the future. Where will such discoveries most likely to take place? Don’t assume it’ll be the United States, cautions Mallinckrodt Professor of Chemistry George Whitesides.…
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New research finds school hiring and support practices fall short
Consider these startling facts: • 33% of new teachers are hired after the school year has already started, and 62% are hired within 30 days of when they start teaching…
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Graduate student Scott Sowerby finds surprising side to King James II
In 1688, in the “Bloodless” or “Glorious Revolution,” King James II of England, abandoned by many of his supporters and facing an invading army from the Netherlands led by his…
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In simulation, bioterrorist warning system passes test
Working within a bioterrorism scenario, an early warning system to detect attacks fulfilled its mission. Those who conducted the test say that, had it been real, millions of lives would…
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Astronomers link gamma-ray bursts, supernovae
Gamma-ray bursts are incredibly bright flashes of high-energy radiation that likely signal the birth of black holes. Bursts occur at random locations scattered across the sky, and few last more…
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Looking for the meaning of life at the bottom of the sea
Charles Langmuir, Harvard professor of geochemistry, loves going to sea. “It’s tremendously stimulating, wonderful, exciting, and eye-opening,” he says enthusiastically. “Every time I’ve gone since 1984, I’ve seen things I’ve…
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Cool X-ray disk points to new type of black hole
Black holes are objects so dense and with a gravitational potential so strong that nothing, not even light, can escape the pull if it ventures too close. Black holes are…
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Area universities enhance regional economy
Harvard and seven other Greater Boston research universities took center stage in their role as the area’s special economic advantage: magnets for talent and investment that infuse more than $7…
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Molecular cloud has a heartbeat
Barnard 68, located 300 light-years away in the constellation Ophiuchus, is a typical example of small, dark molecular clouds known as Bok Globules. Such dense, cold clouds of dust and…
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Professor honored for ongoing environmental research
Harvard Professor Jack Spengler and MIT professor Mario Molina shared the $250,000 Heinz award, which recognized the independent bodies of work by Spengler and Molina, although coincidentally the researchers are…
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Alien abduction claims examined
Mark H. says he was abducted by aliens. He clearly remembers awakening one night, unable to move anything but his eyes. He saw flashing lights, heard buzzing sounds, experienced feelings of levitation, and felt electric tingling sensations. Most terrifying were the nonhuman figures he saw by his bed.
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Studies challenge claims that percent plans provide viable alternative to affirmative action
Although the Texas, California and Florida plans appear to be very similar, in fact they differ greatly. There are key distinctions that must be noted when considering their implementation and…
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Spotlight on the Dark Ages
“Medievalists are just beginning to be aware of the implications of the revolutions now occurring in the life sciences for the knowledge of the past,” says Michael McCormick, the Francis…
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Keys to the highway
Even though they have a massive effect on the natural world, roads have been pretty much ignored by ecologists, who prefer to focus on open areas – the territory between…
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In their cups
Thomas Cummins, Dumbarton Oaks Professor of the History of Pre-Columbian and Colonial Art, has made a career of finding and interpreting objects that hold the key to a fuller understanding…
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First Milky Ways found at edge of universe
One key question that has puzzled astronomers for decades is: When did the first stars and galaxies form after the Big Bang occurred? The answer — very quickly! Astronomers Rennan…
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New moons found around Neptune
Astronomers have discovered three new moons of Neptune, boosting the number of known satellites of the gas giant to 11. These moons are the first to be discovered orbiting Neptune…
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Reading ancient campfires
Ofer Bar-Yosef, Harvard’s MacCurdy Professor of Prehistoric Archaeology and head of the Peabody Museum’s Stone Age Laboratory, is working in the New Stone Age, known as the Neolithic, when Homo…
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A multiracial society with segregated schools
The nation’s public schools are becoming steadily more nonwhite, as the minority student enrollment approaches 40 percent of all U.S. public school students, almost twice the share of minority school…
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New study suggests staggered boards hurt shareholders
Staggered boards hurt shareholders of hostile bid targets even when a majority of the board is made of independent directors, and they do not appear to benefit shareholders of targets…
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Strong public support for spraying against mosquitoes
The opening study of the Project on Biological Security and the Public found that one-third (33 percent) of Americans who live in areas where there are a lot of mosquitoes…
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Hypergiant star erupts
In the year 2000, the star Rho Cassiopeiae, n the constellation of Cassiopeia, lost more mass than in any other stellar eruption observed by astronomers. An international team of astronomers,…