Hidden Passage: Could We Spy a Traversable Wormhole in the Milky Way’s Heart?
Anomalous motions of stars orbiting our galaxy’s central supermassive black hole might reveal the existence of long-hypothesized tunnels through spacetime
Giant “Bubbles” Spotted around the Milky Way’s Black Hole
First major result from South Africa’s pioneering MeerKAT radio telescope reveals remnants of energetic explosions at the galaxy’s center
An Exit Chute from the Universe: The Story of a Historic Effort to Image a Black Hole
After more than a decade of effort, a global network of radio telescopes revealed the first-ever picture of an enigmatic hole in spacetime
At Last, a Black Hole’s Image Revealed
The Event Horizon Telescope captures one of the universe’s most mysterious objects
Neutron Stars: Nature’s Weirdest Form of Matter
The insides of neutron stars—the densest form of matter in the universe—have long been a mystery, but it is one that scientists are starting to crack
How Visiting Venus Will Help Us Find Life on Distant Planets
What Venus can teach us about planets far beyond our own solar system
Celestial Movement
A viewing calendar for what to see in the February and March night sky
These Dusty Young Stars Are Changing the Rules of Planet-Building
Astronomers peer inside planetary nurseries for clues about how our solar system and others came to be
Gravitational-Wave Astronomers Detect Hints of Largest Black-Hole Merger Yet
Physicists at the LIGO experiment have now detected 11 cosmic events that produce ripples in the fabric of space-time
Caught in the Act—Astronomers Get Their Best Look Yet at a Supernova Blowing Up
New observations of a stellar explosion have revealed a surprise that could point to the trigger behind these violent, yet mysterious, eruptions
Voyager 2 Spacecraft Enters Interstellar Space
After a journey of more than four decades, Voyager 2 has passed beyond the sun’s influence
Have Astronomers Found Another “Alien Megastructure” Star?
Scientists now have a second example of a strange stellar phenomenon speculatively linked to extraterrestrial intelligence in 2015