Space

More Stories in Space

  1. An illustration of a huge asteroid crashing into ocean. An ancient sea creature is visible under the water
    Earth

    Not one, but two asteroids might have slain the dinosaurs

    A craterlike structure found off West Africa’s coast might have been formed by an asteroid impact around the same time the dinosaurs went extinct.

    By
  2. Comet Leonard streaking across the night sky, with a greenish tinge at its head
    Planetary Science

    Oort cloud comets may spin themselves to death

    How icy objects from the solar system’s fringe break up as they near the sun is a long-standing mystery. One astronomer now thinks he has an answer.

    By
  3. Glassy debris creates the bluish tinge and radiating black stripes around an impact crater on Mars
    Planetary Science

    Asteroid impacts might have created some of Mars’ sand

    Roughly a quarter of the Red Planet’s sand is spherical bits of glass forged in violent impacts, new observations reveal.

    By
  4. image of a bright red star on the left (Betelgeuse) amid the rest of the constellation Orion (other stars in blue)
    Space

    Over time, Betelgeuse changed color. Now it’s also lost its rhythm

    A recent upset to the star’s variability and ancient records that describe the red star as yellow tell a tale of a star that is no stranger to change.

    By
  5. photo of an inflated balloon in a field before launch in the Seychelles
    Space

    How balloons could one day detect quakes on Venus

    A new study opens the door for future balloon-based missions to study the geology of other worlds.

    By
  6. illustration that shows light (white lines) from the cosmic microwave background (in orange and blue) passing through other galaxies (in purple) on its way to Earth
    Cosmology

    Scientists mapped dark matter around galaxies in the early universe

    A technique used to reveal dark matter could also shed light on a disagreement about the clumpiness of matter in the cosmos.

    By
  7. illustration of a mini-Neptune exoplanet
    Astronomy

    Mini-Neptunes may become super-Earths as the exoplanets lose their atmospheres

    Starlight is eroding the atmospheres of a handful of gassy exoplanets that are a bit smaller than Neptune, gradually exposing the rocky cores within.

    By
  8. illustration of different mars rovers on the martian surface
    Space

    How Mars rovers have evolved in 25 years of exploring the Red Planet

    Over 25 years, remotely controlled rovers have uncovered Mars’ watery history and continue to search for evidence that life once existed there.

    By
  9. photo of a windchime in a backyard
    Cosmology

    The Windchime experiment could use gravity to hunt for dark matter ‘wind’

    Though decades away, the project hopes to use an array of ultrasensitive sensors as a “wind chime,” jostled by dark matter blowing past Earth.

    By