Science & Tech

All Science & Tech

  • Diagnosis by database shows promise

    A relatively new approach to researching cancer involves looking at the actions of thousands of genes in cancer tumors. This technique just recently became possible because, using new applications of…

  • Looking toward the end

    Among astronomers there is almost a consensus that universal expansion will go on forever, with galaxies and clusters of galaxies moving away from each other so fast that gravity cannot…

  • Scientists using gene chips identify unique form of leukemia

    Currently, physicians diagnose and treat a rare form of cancer that strikes infants as a particularly aggressive form of the more common acute lymphoblastic leukemia. The cancer may respond to…

  • Analysis of potential mad cow risk in U.S. finds little chance of disease spread

    The Harvard Center for Risk Analysis (HCRA), part of the Harvard School of Public Health, performed an analysis for the U.S. Department of Agriculture to determine what the effects would…

  • Chandra captures Venus in a whole new light

    Researchers using NASA’s Chandra X-ray Observatory have made the first X-ray images of Venus, Earth’s sister planet.

  • Atmosphere detected on distant world orbiting another star

    One-hundred-and-fifty light years away from Earth, in the constellation Pegasus, is a star known as HD 209458. Using NASA’s Hubble Space Telescope, a research team was able to detect the…

  • New study provides mixed report card on informed consent to cancer clinical trials

    According to a study that appeared in the Nov. 24, 2001, issue of The Lancet, nearly one quarter of cancer patients who participate in clinical trials do not realize that…

  • Anthrax expert Matthew Meselson speaks out

    In 1992-93, Harvard Professor Matthew Meselson investigated the largest known outbreak of inhalation anthrax in history, which occurred in the Soviet Union in 1979. The anthrax was accidentally released from…

  • Survey shows Americans not panicking over anthrax

    In the wake of biological terror attacks perpetrated by unknown persons sending anthrax-laced letters through the U.S. mail, the Harvard School of Public Health and the Robert Wood Johnson Foundation…

  • Strong student support found for war

    American college students strongly support U.S. war objectives in Afghanistan aimed against the Taliban and Osama bin Laden’s al Qaeda terrorist network, according to a survey conducted by the Institute…

  • Atmospheric chemists fly high and low for novel carbon dioxide measurements

    Political leaders throughout the world have taken notice of the increasing levels of carbon in the atmosphere and have begun negotiations on how to mitigate “greenhouse” gases through accords such…

  • It’s easy being green

    Eleven interns worked on seven projects across Harvard University for three months in the summer of 2001. The internships were sponsored by the Harvard Green Campus Initiative, in collaboration with…

  • How media violence touches children

    Children and adolescents are consuming more television than ever before. The average 8- to 18-year-old spends nearly seven hours each day involved with some form of media. Kids are also…

  • Drug patents not crucial in AIDS fight, researchers find

    About 25 million people are infected with AIDS in Africa and just 25,000, or one in 1,000, are receiving antiretroviral drug treatment. Patents for anti-AIDS drugs have come under fire…

  • New use found for black silicon

    In 1999, Harvard researchers used laser pulses to etch the surface of silicon, the most common substance used in electronic devices. By accident, they created a material that efficiently traps…

  • Student investigates investing in Mother Earth

    Managers of “green” mutual investment funds seek to invest their clients’ money in socially responsible and environmentally friendly companies. But those managers, and individual investors, are often hampered by a…

  • Chandra examines a quadrillion-volt pulsar

    A pulsar is a rapidly spinning neutron star that emits massive amounts of radiation in rapid pulses that occur at regular intervals. A neutron star is created when the central…

  • Young pulsar reveals clues to supernova

    Using the Chandra X-ray Observatory to learn more about pulsars, A team led by Stephen Murray of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass., studied 3C58, the remains of…

  • Scientists find X-rays from stellar winds that may play significant role in galactic evolution

    The Rosette Nebula is a nursery for stars. For hundreds of years, astronomers have been looking at this star-forming region and wondering about the forces at work there. Now, scientists…

  • Young stars in Orion may solve mystery of our solar system

    Scientists who study how our solar system formed have been hard pressed to explain the presence of extremely unusual chemical isotopes found in ancient meteoroids orbiting the Earth. The isotopes…

  • Mysterious “two-faced” star explained, scientists say

    Scientists looking at X-rays from a binary star system in the M15 globular star cluster have long been puzzled by the star system, which seemed to have two different sets…

  • Chandra probes nature of dark matter

    It’s one of the universe’s most enduring mysteries — what comprises the “dark matter” that scientists believe most of the universe is made of, but which humans have been unable…

  • Astronomers take the measure of dark matter in the universe

    Astronomers believe that most of the matter in the universe is invisible to us — so called “dark matter.” The nature of this dark matter is not known, but most…

  • Chandra discovers eruption and pulsation in nova outburst

    The brightening of Nova Aquila was first detected by optical astronomers in December 1999. Although this star is at a distance of more than 6,000 light years, it could be…

  • Chandra catches Milky Way monster snacking

    Researchers using the Chandra X-ray Observatory have, for the first time, observed the black hole at the center of our galaxy devouring material.

  • Medicaid coverage for anti-AIDS drugs would be cost effective

    It’s long been said that “an ounce of prevention is worth a pound of cure.” A new study from the Harvard Center for Risk Analysis applies the principle to treating…

  • In N.J. study, 43% of new teachers plan to leave teaching

    Harvard Graduate School of Education (HGSE) researchers are studying the future of teaching through the Project on the Next Generation of Teachers. With the number of students growing across the…

  • U.S. stepped aside during Rwandan genocide

    Samantha Power, executive director of the John F. Kennedy School’s Carr Center for Human Rights Policy, conducted a three-year-long investigation into what the United States government knew, didn’t know, and…

  • Harvard undergraduate discovers novel atomic cluster

    Eighteen-year-old Kevin Chan, a member of the Harvard College Class of 2004, used a supercomputer to discover a novel arrangement of atoms that had been missed by other scientists studying…

  • Why antimatter matters so much

    In 1995, experimenters made nine or 10 atoms of antihydrogen at the Center for European Nuclear Research in Geneva, Switzerland. Since then, researchers have sought a method for making more…