Telescopes

The mystery of ’Oumuamua, the first interstellar object ever observed, continues to deepen.

Astronomers suspect that there’s a large planet hiding out in the distant fringes of the solar system. At a recent workshop, they brainstormed ways to coax it into view.

A living, breathing garden in Seattle serves as the perfect backdrop to an astrobiologist’s search for life on faraway planets.

Even in the age of sun-observing satellites, astronomers like Jay Pasachoff still seek out total solar eclipses for the tales they can tell about our sun.

The astrophysicist Andrea Ghez spent two decades proving that a supermassive black hole anchors the center of the Milky Way galaxy. Her new plan? Test what happens when things get too close.

Angela Olinto’s new balloon experiment takes her one step closer to the unknown source of the most energetic particles in the universe.

A camera lens often used by wildlife and sports photographers has helped astronomers learn about dark matter and galaxy formation.

The astrophysicist Tracy Slatyer is searching for faint wisps of dark matter annihilating in the early universe — and perhaps in hiding places closer to home.

What could cause galaxies millions of light years apart to all spew material in the same direction?