1. Space

    Red giant stars that eat planets might shine less brightly

    Some stars may shine less brightly after ingesting a planet. That finding, if confirmed, could have implications for calculating cosmic distances.

  2. Physics

    How slime mold helped scientists map out the cosmic web

    Tapping a similarity between a slime mold’s lacy web and the vast threads of matter that connect galaxies, astronomers visualized the cosmic web.

  3. Physics

    Physics Nobel awarded for discoveries about the universe’s evolution and exoplanets

    Three scientists share the 2019 Nobel Prize in physics for revealing what makes up our cosmos and for finding the first planet orbiting a sunlike star.

  4. Cosmology

    A new book explores how the concept of the multiverse has evolved

    Tom Siegfried, author of ‘The Number of the Heavens,’ discusses what the multiverse has meant to great thinkers throughout history.

  5. Cosmology

    Debate over the universe’s expansion rate may unravel physics. Is it a crisis?

    Measurements of the Hubble constant don’t line up. Scientists debate what that means.

  6. Cosmology

    Scientists still can’t agree on the universe’s expansion rate

    A mismatch in measurements of how fast the universe is expanding might not be real, a study hints.

  7. Chemistry

    Carbon plays a starring role in the new book ‘Symphony in C’

    In Symphony in C, geophysicist Robert Hazen explores carbon’s ancient origins, its role in life and its importance in the modern world.

  8. Astronomy

    In a first, magnetic fields have been spotted between two galaxy clusters

    The discovery of magnetic fields in the gaseous filament between two galaxy clusters suggests that some large cosmic structures are magnetized.

  9. Cosmology

    Hidden ancient neutrinos may shape the patterns of galaxies

    The gravitational pull of subatomic particles born in the universe’s first second seem to influence how galaxies cluster into rings.

  10. Cosmology

    A cosmic flare called the ‘Cow’ may reveal a new way that stars die

    A burst of light from far away may have been an odd type of exploding star or a white dwarf being eaten by a black hole.

  11. Cosmology

    A second repeating fast radio burst has been tracked to a distant galaxy

    Astronomers have spotted a second repeating fast radio burst, and it looks a lot like the first.

  12. Cosmology

    Voyager 2 spacecraft enters interstellar space

    Voyager 2 just became the second probe ever to enter interstellar space, and the first with a working plasma instrument.