
Frenzy-Feeding Black Hole Makes Galaxy Most Luminous
A galaxy 12.5 billion light-years away gives off the light of 300 trillion suns, because its feeding black hole produces enough heat to set the whole galaxy's dust glowing. Lee Billings reports
Lee Billings is a science journalist specializing in astronomy, physics, planetary science, and spaceflight and is senior desk editor for physical science at Scientific American. He is author of a critically acclaimed book, Five Billion Years of Solitude: The Search for Life Among the Stars, which in 2014 won a Science Communication Award from the American Institute of Physics. In addition to his work for Scientific American, Billings’s writing has appeared in the New York Times, the Wall Street Journal, the Boston Globe, Wired, New Scientist, Popular Science and many other publications. Billings joined Scientific American in 2014 and previously worked as a staff editor at SEED magazine. He holds a B.A. in journalism from the University of Minnesota.

Frenzy-Feeding Black Hole Makes Galaxy Most Luminous
A galaxy 12.5 billion light-years away gives off the light of 300 trillion suns, because its feeding black hole produces enough heat to set the whole galaxy's dust glowing. Lee Billings reports

NASA Tests Its Flying-Saucer Lander for Mars
The lander, a six-meter Kevlar-inflatable disk, could carry heavier loads to the Red Planet

Launch of First Private Solar Sail–Powered Spacecraft Set for Wednesday [Video]
With its LightSail project, the Planetary Society aims to take the next step in its decades-long quest to transform spaceflight

Scientific American Presents: Neil deGrasse Tyson-on StarTalk [Video]
Neil deGrasse Tyson is host of StarTalk, which is both a top-rated podcast and a television series on National Geographic Channel. Click here for full transcript

Scientific American Presents: Neil deGrasse Tyson on StarTalk
Neil deGrasse Tyson is host of StarTalk, which is both a top-rated podcast and a television series on National Geographic Channel

Dawn Spacecraft Images Reveal "Ice Rinks" on Ceres
Bright spots in the latest pictures from NASA’s mission to the dwarf planet may be water ice, researchers say

Mars Travelers Could Suffer Radiation Brain Damage
Mice exposed to radiation akin to what astronauts to Mars would receive experienced cognitive impairment. Lee Billings reports

Astronomers Seek Super-Size Hubble Successor to Search for Alien Life
Controversy swirls around a bold proposal for a bigger, better—and expensive—replacement for NASA’s premier space telescope

Book Review: How to Clone a Mammoth
Books and recommendations from Scientific American

MESSENGER’s Mercurial Swan Song and Other Interplanetary Smash-Ups
On April 30, if all goes well, after running out of fuel to fight off orbital decay NASA’s long-running MESSENGER spacecraft will end its mission to Mercury by crashing into the planet’s surface at nearly 4 kilometers per second.

The Make-or-Break Moment for Hubble Repair
Former NASA astronaut Mike Massimino, veteran of two space shuttle missions to Hubble, recalls how he saved the telescope he loves

Hubble's Repairman Reflects on the Telescope's Legacy
Twenty-five years ago, on April 24, 1990, the Hubble Space Telescope soared into orbit. Since then, its great discoveries have been legion, and the story of how it became the most successful and productive astronomical observatory in human history is destined to become legendary.

Scientific American Editor's Career Soared with Hubble
Mariette DiChristina, Scientific American's Editor in Chief, has a special place in her heart for the Hubble Space Telescope

Alien Supercivilizations Absent from 100,000 Nearby Galaxies
The most far-seeing search ever performed for “Dyson spheres” and other artifacts of “astroengineering” comes up empty. Where is everybody?

SpaceX Faces the Hard Truth about Soft Landings—They’re Tough to Do
With two partially successful landing attempts of its Falcon 9 booster, the private company inches closer to its goal of making a fully reusable rocket

Martian Glaciers Equal Meter-Thick Planetary Ice Shell
Radar measurements and models of Earthly glacial ice flows led researchers to conclude that the glaciers spotted on Mars from orbiters contain nearly 150 billion cubic meters of water. Lee Billings reports

Supermassive Black Holes Make Merging Galaxies Green
Green as a color can mean animal, vegetable or mineral. It is the stuff of crocodiles, chlorophyll and copper patina, the essence of serpentine or of snakes in the grass, the hue of a glacial lake, a stagnant pond and the Chicago River on St.

Jupiter, Destroyer of Worlds, May Have Paved the Way for Earth
Careening toward the sun, Jupiter cleared the way for Earth to form—with help from Saturn, too

Against April Fools' in Science Journalism
My lowest point as a science journalist came before I even knew what a science journalist was. I was a young punk in an eighth-grade science class at Northwood Middle School in Greenville, South Carolina

NASA Chooses a Boulder as the Next Destination for Its Astronauts
The agency's controversial Asteroid Redirect Mission no longer calls for redirecting an asteroid into high lunar orbit

After a Martian Marathon, NASA's Opportunity Rover Faces Uncertain Future
It's been a long time coming, but this week NASA's Mars Opportunity rover completed the first-ever Martian marathon. After landing on the Red Planet in January 2004 on a mission originally planned to only last 90 days, Opportunity has instead endured for more than a decade, and has taken eleven years and two months to [...]

Fact or Fiction?: Dark Matter Killed the Dinosaurs
A new out-of-this-world theory links mass extinctions with exotic astrophysics and galactic architecture

That's What Ya Call a 4-Star Planet
Astronomers report the discovery of only the second quadruple-star system known to host at least one planet. But they suspect there are a lot more such systems out there. Lee Billings reports

Looking for Life In Our Soggy Solar System
Scientists are finding liquid water, the cornerstone for life as we know it, in surprising nooks and crannies of the solar system. Following Wednesday's news that there seem to be hydrothermal vents churning away in the warm, alkaline seas inside Saturn's moon Enceladus, researchers announced airtight evidence yesterday that Jupiter's moon Ganymede also has a [...]