All Stories

  1. Freezers at a Pfizer facility
    Health & Medicine

    Here’s why COVID-19 vaccines like Pfizer’s need to be kept so cold

    Both Pfizer and Moderna built their vaccines on RNA. Freezing them keeps their fragile components from breaking down.

  2. Fritillaria delavayi plant blending with rocky background

    These plants seem like they’re trying to hide from people

    A plant used in traditional Chinese medicine has evolved remarkable camouflage in areas with intense harvesting pressure, a study suggests.

  3. Mount Everest

    Plastics are showing up in the world’s most remote places, including Mount Everest

    From the snow on Mount Everest to the guts of critters in the Mariana Trench, tiny fragments called microplastics are almost everywhere.

  4. a colugo mother hanging in a tree with a baby colugo peeking over her leg

    On a cool night in Malaysia, scientists track mysterious colugos across the treetops

    Our reporter tags along for nighttime observations of these elusive gliding mammals.

  5. Arecibo Observatory

    Arecibo Observatory, an ‘icon of Puerto Rican science,’ will be demolished

    The telescope, known for cameos in moves like Contact and for fast radio burst observations, was feared to be on the verge of collapse.

  6. supercooled water molecules illustrated

    Supercooled water has been caught morphing between two forms

    A new experiment used ultrafast techniques to reveal high-density water transforming into low-density water at subfreezing temperatures.

  7. a microscopic image showing several radiolarians

    50 years ago, scientists named Earth’s magnetic field as a suspect in extinctions

    In 1970, researchers saw a link between magnetic pole reversals and extinctions. Fifty years later, scientists have uncovered more suggestive examples but no strong evidence of a direct link.lamb

  8. Monarch caterpillar

    Monarch caterpillars head-butt each other to fight for scarce food

    Video experiments show that monarch caterpillars turn aggressive when there’s not enough milkweed to go around.

  9. guttural toad

    Guttural toads shrank by a third after just 100 years on two islands

    Introduced in the 1920s, toads on two islands in the Indian Ocean have shrunken limbs and bodies that may be evidence that "island dwarfism" can evolve quickly.

  10. photo of a syringe with the Pfizer and BioNTech logos in the background
    Health & Medicine

    New Pfizer results show its COVID-19 vaccine is nearly 95% effective

    With final results – including showing its vaccine is 94 percent effective in the elderly – Pfizer is poised to request emergency use authorization.

  11. Ardi skeleton

    Ardi and her discoverers shake up hominid evolution in ‘Fossil Men’

    A new book covers the big personalities, field exploits and scientific clashes behind the discovery of the hominid skeleton nicknamed Ardi.

  12. farm on Mars, illustrated
    Planetary Science

    Farming on Mars will be a lot harder than ‘The Martian’ made it seem

    Lab experiments developing and testing fake Martian dirt are proving just how difficult it would be to farm on the Red Planet.