“Technostuff” built in the last 100 years outweighs all the living matter on Earth.
Author: DENNIS OVERBYE
A Solstice of the Soul
For his next trick, your cosmic correspondent for the past quarter-century will (try to) retire.
Barnard’s Star Finally Has a Planet, and Possibly More
For a century, exoplanet hunters have “discovered” planets around a nearby star, only to retract the claims. But the latest find is for real.
Two Black Holes are Giving the Cosmos a Fright
The ghosts of stars are up to their usual mischief.
Astronomers Spot a Black Hole with a Cosmic Wingspan
Astronomers have discovered a black hole emitting energy in jets longer than the width of 140 Milky Way galaxies.
Palomar Observatory Bids Farwell to its Cosmic Restaurant
Palomar Observatory bids farewell to a tradition of napkin rings, cowbells and astronomical table conversation.
Chandra Observatory Captures Two Supernovas in (Slow) Motion
For the 25th anniversary of the Chandra X-ray Observatory, NASA produced ghostly time-lapse videos of two centuries-old stellar explosions.
Piping Up at the Gates of Dawn
Astronomers have found the earliest and most distant galaxy yet.
The Magnetic Heart of the Milky Way
A new map of the center of the Milky Way galaxy reveals details of its magnetic fields
A Tantalizing ‘Hint’ That Astronomers Got Dark Energy All Wrong
Scientists may have discovered a major flaw in their understanding of that mysterious cosmic force. That could be good news for the fate of the universe.