Ashley Yeager

All Stories by Ashley Yeager

  1. First flower reconstruction

    A new portrait of the world’s first flower is unveiled

    A reconstruction of the first flowers suggests the ancient blooms were bisexual.

  2. Venus
    Planetary Science

    Evidence mounts for an ocean on early Venus

    Not long after its birth, Venus may have rocked a water ocean, new simulations suggest.

  3. galaxies M81 and M82

    Half of the Milky Way comes from other galaxies

    A galaxy may swipe up to half of its atoms from other galaxies, making the Milky Way mostly extragalactic stuff, new simulations suggest.

  4. Syrtis Major
    Planetary Science

    More hints of Martian hot springs may hold promise for Mars 2020 mission

    An analysis of ridges in a crater of Margaritifer Terra on Mars offers evidence of ancient hot springs and also hints at the potential for finding signs of life.

  5. microlensing illustration

    Fewer big rogue planets roam the galaxy, recount shows

    Jupiter-mass planets without parent solar systems are less common than astronomers thought, a new study suggests.

  6. synestia illustration
    Planetary Science

    Earth might once have resembled a hot, steamy doughnut

    Newly proposed space objects called synestias are large, spinning hunks of mostly vaporized rock. They look like a jelly-filled doughnut.

  7. bro with dog

    These genes may be why dogs are so friendly

    Dog domestication may be the result of just a few genetic changes, including ones that made canines more interested in interacting with people.

  8. Sentinel-1 satellite image of Larsen C

    Delaware-sized iceberg breaks off Antarctic ice shelf

    An iceberg about the size of Delaware splintered from the Larsen C ice shelf in one of the largest calving events ever recorded.

  9. petunias

    Petunias spread their scent using pushy proteins

    Scent molecules hitch a ride on a particular protein to escape flowers.

  10. child looking at firearm
    Science & Society

    Latest stats are just a start in preventing gun injuries in kids

    New stats on firearm deaths and injuries are disturbing, but the picture to make policy is far from complete, researchers say.

  11. frames of particles of light

    New video camera captures 5 trillion frames every second

    A new camera’s record-breaking speed offers researchers a window into never-before-seen phenomena, such as combustion reactions.

  12. Larsen C ice shelf

    Antarctica’s Larsen C ice shelf is within days of completely cracking

    The crack in Antarctica’s Larsen C ice shelf grew another 17 kilometers between May 25 and May 31, 2017 and is at risk of breaking off a massive iceberg.