Science & Tech

All Science & Tech

  • Solving colibactin’s code

    In an effort to understand how colibactin, a compound produced by certain strains of E. coli, may be connected to the development of colorectal cancer, Harvard researchers are exploring how the compound damages DNA to produce DNA adducts.

    Emily Balskus.
  • Think different, act more

    Hal Harvey, the CEO of Energy Innovation, a San Francisco–based energy and environmental policy firm, encouraged an audience at Harvard to get involved in about innovative ways to address climate change.

    Hal Harvey gives climate talk.
  • More than a courier

    Now research suggests that a nerve cells’ axons may be making decisions on their own, challenging the dogma that the nucleus and cell body are the control centers of the neuron.

    neurone string
  • Termites shape and are shaped by their mounds

    Researchers investigate how centimeter-sized termites, without architects, engineers or foremen, can build complex, long-standing, meter-sized structures all over the world.

  • Rapid evolution, illustrated

    A study in which mice were released into outdoor enclosures to track how light- and dark-colored specimens survived confirms that mice survive better in similarly colored habitats, providing insights into evolution.

  • Microbial manufacturing

    Emily Balskus and a team of researchers untangled how soil bacteria are able to manufacture streptozotocin, an antibiotic and anti-cancer compound.

    Emily Balskus standing in her office
  • Twins in space

    To understand the strain that space flight places on the body, NASA-affiliated researcher Brinda Rana has been examining the molecular changes in the twin astronauts Scott and Mark Kelly for five years.

    Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly
  • When science is unreliable

    For her research into the reproducibility crisis, Radcliffe fellow Nicole C. Nelson is conducting oral histories with scientists and assembling a database of academic and news articles.

    Nicole Nelson.
  • Looking at lunglessness

    A recent study shows that a gene that produces surfactant protein c — a key protein for lung function — is expressed in the skin and mouths of lungless salamanders, suggesting it also plays an important role for cutaneous respiration.

    Desmognathus fuscus. That is one of the lungless salamanders featured in the study
  • To tackle climate change, share burden — and benefits

    Steps to limit climate change require not only scientific advances but social and policy changes that spread the benefits of alternative energy sources, professor Daniel M. Kammen said in Radcliffe lecture.

  • How violence pointed to virtue

    Richard Wrangham’s new book examines the strange relationship between good and evil.

  • Embedding ethics in computer science curriculum

    Computer science students examine issues such as privacy, censorship, and fake news in courses co-designed by philosophy professors as Harvard works to embed ethics in the curriculum, creating a national model.

    Socrates and binary code.
  • Radcliffe scholar tracks squirrels in search of memory gains

    Radcliffe Fellow Lucia Jacobs hopes to gain insights on human memory from her work with squirrels.

    Squirrel.
  • Clues of heart disease found in 16th-century mummies

    CT scans reveal evidence of atherosclerosis in 16th-century mummies from Greenland. The mummies were of particular interest due to their diet, which relied on fish — commonly touted as a heart-healthy diet.

    CT scan of mummy
  • Science at the speed of ‘light-sheet’

    Combining two recently developed technologies — expansion microscopy and lattice light-sheet microscopy — researchers have developed a method that yields high-resolution visualizations of large volumes of brain tissue, at speeds roughly 1,000 times faster than other methods.

    Neural processes in a mouse brain.
  • Workshops explore data and computational science

    Two Harvard events on data and computational science showcase the breadth of data experts and help meet the demand for training in the field.

    A hand reaching out to graphs and charts
  • A growing role as a living lab

    Harvard’s Arnold Arboretum is a critical destination for researchers such as Andrew Groover, who finds every species he needs within its 281 acres.

  • Perspectives on gene editing

    Harvard researchers, others share their views on key issues in the field

    Hand unlocking genetic data.
  • Stepping inside a dead star

    An astronomical team uses detailed data to create a virtual reality experience of being inside an exploded star.

  • Robots with sticky feet can go where humans can’t

    Researchers have created a micro-robot whose electroadhesive foot pads allow it to climb on vertical and upside-down conductive surfaces, such as the inside walls of a jet engine. Groups of micro-robots could one day be used to inspect complicated machinery and detect safety issues sooner, while reducing maintenance costs.

  • Size a concern when replacing heart valves

    Getting the perfect-size artificial heart valve without ever actually looking at the patient’s heart was a challenge … until now. Researchers at the Wyss at Harvard University have created a 3-D printing workflow that allows cardiologists to evaluate how different valve sizes will interact with each patient’s unique anatomy

    Clogged valve
  • Life, with another ingredient

    In a paper published in PNAS, Jack W. Szostak, professor of chemistry and chemical biology at Harvard, along with graduate student Seohyun (Chris) Kim, suggest that RNA could have started with a different set of nucleotide bases. In place of guanine, RNA could have relied on a surrogate, inosine.

    Jack W. Szostak.
  • Replacing hard parts in soft robots

    Harvard scientists have created a soft valve that could replace “hard” valves and lead to the creation of entirely soft robots. The valve’s structure can also be used to produce unique, oscillatory behavior.

    Soft robot.
  • Reading teeth

    By examining the teeth of Neanderthal infants, a team of researchers was able to glean insight into nursing and weaning behavior as well as winter and summer cycles. The study even found evidence that the Neanderthals had been exposed to lead — the earliest such exposure ever recorded in any human ancestor.

  • How mammals grew diverse

    Using a detailed, musculoskeletal model of an echidna forelimb, Harvard scientists are not only shedding light on how the little-studied echidna’s forelimbs work, but also opening a window into understanding how extinct mammals might have used those limbs.

    Echidna on the prowl.
  • Shining a light on quantum bits

    A Ph.D. student working in the lab of Professor Mikhail Lukin, co-director of the Quantum Science and Engineering Initiative, has demonstrated a method for engineering an interaction between two qubits using photons.

    A crystal with lasers going through it
  • Picturing early Mars

    Professor Robin Wordsworth explains why the just-announced landing site for the 2020 Mars rover mission has a lot to offer SEAS researchers.

    Jezero Crater.
  • Yeasts get a boost from solar power

    Harvard researchers have started to combine bacteria with semiconductor technology that, similar to solar panels on a roof, harvests energy from light and, when coupled to the microbes’ surface, boosts their biosynthetic potential.

    Yeast Molecules
  • Cultivating a wider role for women scientists

    A tiny seed has already changed the careers of the Arnold Arboretum’s Tiffany Enzenbacher and Kea Woodruff, and it may one day bear fruit in an example of flora rescued from extinction— and a growing space for women in science.

  • Critical collections

    Harvard researchers contribute to the preservation of museum specimens, marking the collections’ importance in a special journal released Nov. 19.

    Charles Davis