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Why Can’t We Find Planet Nine?
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.
Victoria Meadows’ Earthly Visions of Alien Life
A living, breathing garden in Seattle serves as the perfect backdrop to an astrobiologist’s search for life on faraway planets.
Eclipse Hunter Reveals the Science That Can Only Be Done in the Dark
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.
Black-Hole Hunter Takes Aim at Einstein
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.
A Cosmic-Ray Hunter Takes to the Sky
Angela Olinto’s new balloon experiment takes her one step closer to the unknown source of the most energetic particles in the universe.
Off-the-Shelf Lens Assists Dark Matter Find
A camera lens often used by wildlife and sports photographers has helped astronomers learn about dark matter and galaxy formation.
A Seeker of Dark Matter’s Hidden Light
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.
A Glimpse Through a Cosmic Keyhole
What could cause galaxies millions of light years apart to all spew material in the same direction?
A Digital Copy of the Universe, Encrypted
As physics prepares for ambitious projects like the Large Synoptic Survey Telescope, the field is seeking new methods of data-driven discovery.