Planetary Science

  1. An ultraviolet composite image of Saturn. The planet is seen in shades of blue with a white band towards the center at at the top.
    Planetary Science

    Saturn’s icy rings are probably heating its atmosphere, giving it an ultraviolet glow

    Detecting similar emission from a distant world could help astronomers find other planets that boast bright and beautiful rings.

    By Ken Croswell
  2. The surface of Venus
    Planetary Science

    Venus has almost 50 times as many volcanoes as previously thought

    Where are there NOT volcanoes on Venus? A new map of the planet unveils a veritable volcanic bonanza.

    By Maria Temming
  3. A dark planet in space with no star nearby, with a galaxy distantly cutting through the background
    Planetary Science

    Planets without stars might have moons suitable for life

    Thanks to gravitational squeezing by their host planets, some moons of rogue planets could stay warm for over a billion years, simulations suggest.

    By Bas den Hond
  4. A photo of Jupiter with its moons Io and Europa seen in front.
    Planetary Science

    Baby Jupiter glowed so brightly it might have desiccated its moon

    During its infancy, Jupiter may have glowed about 10 thousand times brighter than it does today, which may explain why its moon Io is completely dry.

    By Nikk Ogasa
  5. A photo take of the asteroid Ryugu. A light gray circular shape in the center on a deep black background.
    Space

    A crucial building block of life exists on the asteroid Ryugu

    A sample from Ryugu collected by Japan’s Hayabusa2 spacecraft contains uracil, a component of RNA, which is found in all living cells.

    By Allison Gasparini
  6. A close-up of rice plants
    Agriculture

    Martian soil may have all the nutrients rice needs

    Experiments hint that in the future, we might be able to grow the staple food in the soils of the Red Planet.

    By Nikk Ogasa
  7. An image of Maat Mons on Venus based on data from spacecraft. A yellow mountain rises up on a black background with a brown area in the foreground.
    Planetary Science

    A volcano on Venus was spotted erupting in decades-old images

    A new look at old data reveals an eruption on Venus in the 1990s that was probably similar to Hawaii’s Kilauea eruption in 2018.

    By Lisa Grossman
  8. An illustration of a planet crashing into Earth, setitng off a huge explosion and launching chunks of rock into space
    Earth

    A moon-forming cataclysm could have also triggered Earth’s plate tectonics

    Deeply buried remnants of a hypothetical planet that slammed into Earth 4.5 billion years ago might have set subduction into motion.

    By Nikk Ogasa
  9. NASA Rover Perseverance takes a selfie on Mars
    Space

    What has Perseverance found in two years on Mars?

    NASA's Perseverance rover has turned up volcanic rocks, signs of flowing water and some of the materials necessary for life.

    By Liz Kruesi
  10. An illustration of the dwarf planet Quaoar.
    Astronomy

    The Kuiper Belt’s dwarf planet Quaoar hosts an impossible ring

    Quaoar’s ring lies outside the Roche limit, an imaginary line beyond which rings aren’t thought to be stable.

    By Lisa Grossman
  11. An illustration of the Kepler-35 system with a planet in the foreground and two stars in the background.
    Astronomy

    Lots of Tatooine-like planets around binary stars may be habitable

    A new simulation suggests that planets orbiting a pair of stars may be plentiful, and many of those worlds could be suitable for life.

    By James R. Riordon
  12. A chain of craters on Enceladus looks like a Saturnian snowman.
    Planetary Science

    Enceladus is blanketed in a thick layer of snow

    Pits on the Saturnian moon reveal the surprising depth of the satellite’s snow, suggesting its plume was more active in the past.

    By Lisa Grossman