Uncategorized

  1. Paleontology

    How fast did dinosaurs really go? Birds walking in mud provide new clues

    Tracks of dinosaur footprints can hint at how fast the extinct animals moved. Here’s how guinea fowl can help fact-check those assumptions.

    By Sofia Caetano Avritzer
  2. Space

    The biggest black hole smashup ever detected challenges physics theories

    Gravitational waves spotted by LIGO reveal two black holes, 140 and 100 times the mass of the sun, merged to become a 225 solar mass behemoth.

    By Emily Conover
  3. Space

    A newly discovered interstellar object might predate the solar system

    3I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known.