Space

  1. Arecibo telescope
    Space

    Here are 10 of Arecibo’s coolest achievements

    The now-defunct Arecibo radio telescope in Puerto Rico made myriad discoveries over its 57-year run, including of pulsar planets and ice on Mercury.

    By
  2. Collapsed Arecibo telescope
    Space

    Why losing Arecibo is a big deal for astronomy

    The radio telescope at the Arecibo Observatory has collapsed, robbing scientists of a special tool for studying everything from asteroids to galaxies.

    By
  3. Murchison meteorite fragment
    Planetary Science

    50 years ago, scientists caught their first glimpse of amino acids from outer space

    In 1970, scientists detected amino acids in a meteorite. Fifty years later, a variety of chemical ingredients for life have been found in other space rocks.

    By
  4. Geminid meteor shower
    Space

    December’s stunning Geminid meteor shower is born from a humble asteroid

    Most meteor showers arise from comets, but the robust Geminid shower comes from an asteroid, Phaethon, which scientists are still trying to figure out.

    By
  5. team members of China’s Chang’e-5 mission celebrating the spacecraft’s launch
    Planetary Science

    China is about to collect the first moon rocks since the 1970s

    The robotic Chang’e-5 mission, which landed on an unexplored region of the moon December 1, aims to gather samples and return them to Earth.

    By
  6. Magnetar illustration
    Space

    Astronomers spotted colliding neutron stars that may have formed a magnetar

    Astronomers may have witnessed the formation of a kind of rapidly spinning, extremely magnetized stellar corpse for the first time.

    By
  7. M83 galaxy
    Space

    Runaway stars may create the mysterious ultraviolet glow around some galaxies

    Hot blue stars kicked out of their birthplace can travel thousands of light-years to their galaxies’ hinterlands, new computer simulations show.

    By
  8. clouds of dust surrounding the red supergiant star Betelgeuse
    Astronomy

    Betelgeuse went dark, but didn’t go supernova. What happened?

    Astronomers are anxious to learn why Betelgeuse, one of the brightest stars in the sky, dimmed dramatically, but didn’t explode, in 2019.

    By
  9. Arecibo Observatory
    Astronomy

    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.

    By
  10. 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.

    By
  11. TRAPPIST-1 exoplanet system
    Space

    Planets with many neighbors may be the best places to look for life

    Solar systems with many planets in circular orbits suggest a calm life-nurturing past, while single exoplanets with eccentric orbits hint at chaos.

    By
  12. illustration of Mars surface
    Planetary Science

    Chemical reactions high in Mars’ atmosphere rip apart water molecules

    Mars is so dry because its water constant escapes into space. A new study suggests this process occurs in the ionosphere and faster than thought.

    By