James Riordon is a freelance science writer who covers physics, math and astronomy, and coauthor of the book Ghost Particle – In Search of the Elusive and Mysterious Neutrino.

All Stories by James R. Riordon

  1. Space

    Why the 2024 total solar eclipse will be such a big deal

    The sun will be very active during the next solar eclipse to cross North America, making it an excellent viewing and scientific opportunity.

  2. Astronomy

    A bar of stars at the center of the Milky Way looks surprisingly young

    The ages and locations of metal-rich stars in the galaxy suggest the Milky Way’s central bar finished forming just a few billion years ago.

  3. Space

    The James Webb telescope took some stunning images in 2023

    Star nurseries. Planets. Supernova remnants. Here’s a look at some of this year’s stellar JWST images. And the mission is still just getting started.

  4. Astronomy

    How tiny red stars can test ideas about the origin of life

    A survey of ultracool dwarf stars finds they don’t emit enough UV light to kick-start life, but they could reveal other ways for life to get going.

  5. Physics

    How neutron imaging uncovers hidden secrets of fossils and artifacts

    The technique can complement X-ray scanning and other tools to uncover details of dinosaur fossils, mummies and more.

  6. Planetary Science

    Marsquakes and meteorite hits show Mars has a dense liquid metal core

    Mars’ dense liquid iron core is wrapped in a layer of molten rock, which threw off previous measurements of the Red Planet’s heart.

  7. Physics

    How quantum ‘squeezing’ will help LIGO detect more gravitational waves

    An upgrade to LIGO that comes from exploiting a quantum rule known as the Heisenberg uncertainty principle makes it easier to detect spacetime ripples.

  8. Space

    Here’s how citizen scientists can help during the 2024 solar eclipse

    The sun will be near the peak of its activity cycle during the eclipse on April 8, 2024, making it a great time to crowdsource solar research.

  9. Space

    NASA’s first look at a sample from asteroid Bennu reveals life’s building blocks

    Scientists have begun to analyze roughly 250 grams of Bennu, which could offer insight into solar system formation and life’s origins on Earth.

  10. Physics

    Technique to see the ultrafast world of electrons wins 2023 physics Nobel

    Physicists Pierre Agostini, Ferenc Krausz and Anne L’Huillier won for work creating light bursts that last billionths of a billionth of a second.

  11. Cosmology

    New JWST images suggest our understanding of the cosmos is flawed

    JWST data don’t resolve a disagreement over how fast the universe is expanding, suggesting we might need strange new physics to fix the tension.

  12. Space

    NASA’s OSIRIS-REx has returned bits of the asteroid Bennu to Earth

    Asteroid dirt from Bennu could help reveal clues about the material that came together to make the solar system — and possibly where life comes from.