Alexandra Witze

Contributing Correspondent

Alexandra Witze is a contributing correspondent based in Boulder, Colorado. Among other exotic locales, her reporting has taken her to Maya ruins in the jungles of Guatemala, among rotting corpses at the University of Tennessee's legendary "Body Farm," and to a floating sea-ice camp at the North Pole. She has a bachelor's degree in geology from MIT and a graduate certification in science communication from the University of California, Santa Cruz. Among her honors are the Science-in-Society award from the National Association of Science Writers (shared with Tom Siegfried), and the American Geophysical Union's award for feature journalism. She coauthored the book Island on Fire, about the 18th-century eruption of the Icelandic volcano Laki.

All Stories by Alexandra Witze

  1. Earth

    Buying time when quakes hit

    On the West Coast, geologists are developing an earthquake warning system that can provide seconds of notice before destructive shaking begins. The system could be ready before the next big quake hits.

  2. Genetics

    Life at the Speed of Light

    Biology has come a long way from the days of mixing things in petri dishes and hoping something interesting happens. In his new book, Venter introduces readers to a future of precise biological engineering.

  3. Earth

    The long and winding Colorado

    The history of the West’s iconic river is written in the dramatic landscapes it has shaped. How to interpret that chronicle has become a contentious issue among geologists.

  4. Astronomy

    Quiet maximum

    By almost any measure, this solar maximum has been pathetic. No more than 67 sunspots have appeared in a month so far; at the last peak, in 2000, that number was above 120.

  5. Space

    Exploring Earth’s alien spaces

    Nathalie Cabrol, a planetary geologist and astrobiologist at the SETI Institute’s Carl Sagan Center and NASA’s Ames Research Center, both in Mountain View, Calif., hunts for alien life.

  6. Math

    Thinking In Numbers

  7. Cosmology

    Everlasting light

    Remnant glow of ancient stars offers glimpse of universe's past.

  8. Astronomy

    Postcards from Voyager

    Suzanne Dodd is project manager for NASA’s twin Voyager probes.

  9. Planetary Science

    Mystery Meteorite

    The case for (and against) a rock from Mercury.

  10. Earth

    The ice keeper

    DENVER — “I’m a little tired of the cold,” Geoff Hargreaves says with a sigh. Vasileios Gkinis of the University of Colorado Boulder examines layers in an ice core that reveal environmental changes over time. Gifford Wong/Wais Jeff Kanipe No surprise there: Hargreaves works in a deep freeze — 38 degrees Celsius below zero (−36° […]

  11. dynamo experiment

    Spinning the Core

    Laboratory dynamos attempt to generate magnetic fields the way planets and stars do.

  12. Earth

    Geologists develop weapons to combat that sinkhole feeling

    What do five Porsches, several Kentucky thoroughbreds and a three-story building in Guatemala City have in common? They’ve all been swallowed by sinkholes. Sadly, the sudden cave-ins sometimes claim people’s lives as well. On February 28 the earth opened up underneath the Seffner, Fla., bedroom of Jeff Bush, entombing him. The freak accident highlighted Florida’s […]