The decades-long search for Type Ia supernovae progenitors has taken on special importance due to their use in measuring the acceleration of the universe.
The discovery of the Kepler-34 and Kepler-35 systems establishes that double-star worlds are not uncommon.
Astronomers using data from NASA's Kepler mission have discovered the three smallest planets yet detected orbiting a star beyond our sun.
Three images taken by NASA's Hubble Space Telescope reveal the emergence of an exploding star, called a supernova.
A new Hubble Space Telescope image centers on the 100-million-solar-mass black hole at the hub of the neighboring spiral Andromeda galaxy, the only galaxy outside the Milky Way visible to the naked eye.
Peering deep inside the hub of the neighboring Andromeda galaxy, Hubble has uncovered a large, rare population of hot, bright stars.
A new, large mosaic from NASA's Wide-Field Infrared Survey Explorer (WISE) showcases a vast stretch of cosmic clouds bubbling with new star birth.
The stars we see today weren't always as serene as they appear, floating alone in the dark of night.
An international team of astronomers has identified the moment when a black hole in our galaxy launched super-fast knots of gas into space.
NASA's Hubble Space Telescope has uncovered the most distant grouping of a cluster of galaxies in the initial stages of development ever observed in the early universe.