The observation of two stellar-mass objects in one globular cluster violates existing astrophysical dogma.

Explosion probably resulted from two white dwarfs.

In the distant galaxy M87, new observations about structure’s rotational speed and jets show the potential of a budding telescope network. (p. 10)

Sent to Mars in search of water and other evidence of habitability, the rover appears to have landed in a dry streambed.

ANCHORAGE, Alaska — On a bright June evening, residents of Anchorage packed the theater in Cyrano’s Off-Center Playhouse, ready to sample some otherworldly dispatches. The messages were beamed to Earth by NASA’s Kepler spacecraft, which circles the sun spying on planets orbiting distant stars. Planet-hunting members of the mission’s science team, in town for an American Astronomical Society meeting, served as translators for the evening, telling tales of far-off worlds that put a twinkle in the spacecraft’s eye. At the time of the summer get-together, the Kepler team had officially... (p. 26)

On the 35th anniversary of the spacecraft’s launch, scientists ponder when it will move beyond the sun’s reach. (p. 14)

The newfound planet orbits a common type of dwarf star, suggesting even more may be out there. (p. 12)