The "Per-Tau shell," which extends for nearly 500 light years, solves a big mystery and has implications for astrophysics as a whole.
Stars show chemical traces of past "planetary ingestion" that can be used to search for Earth-like planets.
A radioactive isotope profoundly affected the origin and evolution of our solar system. Now, scientists have spotted it in a system of budding stars.
Adam Szabo and Betsy Congdon, two leads on the Parker Solar Probe, discuss the mission’s discoveries and its daredevil future.
Stars that have gone missing from the Hyades cluster may have been torn away by a dark matter monster with the mass of 10 million Suns.
A rare natural fission reaction might detonate white dwarfs into special supernovae that help scientists measure the expansion of the universe.
If confirmed, the collision between never-before-seen boson stars may solve the long search for the source of dark matter.
Dr. Aparna Venkatesan studies the distant reaches of space and time, while advocating for a night sky undamaged by orbital clutter.
Lisa Kaltenegger, director of the Carl Sagan Institute at Cornell, talks exoplanets, telescopes, and first contact.
The gravitational force is causing our home galaxy to twist and deform.
The Ultimately Large Telescope, a concept for a spinning liquid telescope, could see the light of the first stars.