Planetary Science
Heavy Metal Exoplanet Found Orbiting Nearby Star
With a density close to that of pure iron, GJ 367b may be the remnant metal-rich core of an evaporated giant world
"Exoplanets"
Astronomy
When Did Life Start in the Universe?
Interstellar xenia, or the welcoming of cosmic strangers, could solve this mystery
Astronomy
Scientists Plan Private Mission to Hunt for Earths around Alpha Centauri
A privately funded telescope called Toliman will seek habitable worlds in our nearest neighboring star system, potentially sparking a new wave of exoplanetary exploration
Extraterrestrial Life
How Scientists Could Tell the World if They Find Alien Life
Sparked by major advances in their field, astrobiologists are grappling with how best to discuss possible breakthrough discoveries with the public
Astrophysics
Hunt for Alien Life Tops Next-Gen Wish List for U.S. Astronomy
A major report outlining the highest priorities and recommendations for U.S. astronomy has finally been released, revealing the shape of things to come
Astronomy
‘Auroral’ Exoplanets Could Help Boost Searches for Alien Life
Four candidate worlds found via flashes of radio emission may be the first of many revealed by a new planet-hunting technique
Astronomy
This Report Could Make or Break the Next 30 Years of U.S. Astronomy
A battle for the future of American stargazing is about to begin—and the stakes are sky high
Space & Physics
Unbinding Life, Unbounded
The blog’s author reflects as nine years of writing undergo an evolutionary change
The Architecture of Worlds
Our nearest star system is slowly revealing itself
Space & Physics
Magnetic Planets
Silicate dynamos could drive magnetic fields in more planets—and younger ones
Space & Physics
One Decade, a Lot of Writing
Ten years, measured in words on astrobiology, exoplanets and the cosmos in general
Moon Blobs, Collapsars and Long Planets
A roundup of recent research with astrobiological implications
Space & Physics
Are Small Stars a Bit Useless?
For photon-eating life, smaller stars are unavoidably inferior providers—according to thermodynamics
Space & Physics
The Meaning of Life
Questions about living systems on other planets come with some baggage
Space & Physics
The Birth of Worlds
Stunning new images of young planetary systems create a profound cosmic perspective
Space & Physics
350 Posts: From Blue Dots to Black Holes
The Life, Unbounded column reaches a milestone and reflects on seven years of astrobiology, astrophysics and wonderfully crazy stuff
The Worst Universe
There's a lot to be learned by exploring pessimistic scientific scenarios
Astrobiology in Context: A Modern Timeline
A graphical review of major scientific milestones over the past four decades helps put the search for life into perspective
Space & Physics
This Island Earth
One planet, modified by life, racing into the future. Our species should gear up
Space & Physics
SETI, the Next Generation?
Time to bring the search for extraterrestrial technosignatures all the way in from the cold
