Astronomers Have Found Another Possible ‘Exomoon’ beyond Our Solar System
Kepler-1708 b-i appears to be a giant moon orbiting a Jupiter-sized planet thousands of light-years from Earth
Volume 31, Issue 4s
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Features
Meet the Unsung Heroes behind Humanity’s Improbable Journey to an Alien Ocean
The author of a new book reveals the hidden human history of NASA’s in-development Europa Clipper mission
Alien Anthropocene: How Would Other Worlds Battle Climate Change?
The problem would likely plague every technological civilization throughout the universe, says astrophysicist Adam Frank
Alone in a Crowded Milky Way
Even a galaxy teeming with star-hopping alien civilizations should still harbor isolated, unvisited worlds—and Earth might be among them
The Race to Find Alien Moons
Astronomers are hunting for the first moon around a planet beyond our solar system
Everything Scientists Know So Far about the First Interstellar Objects Ever Detected
Strange bodies from beyond the solar system have defied predictions
How Visiting Venus Will Help Us Find Life on Distant Planets
What Venus can teach us about planets far beyond our own solar system
Are Humans Alone in the Milky Way?
Why we are probably the only intelligent life in the galaxy
We Are the Aliens
The emergence of the human “dataome” is like a sudden invasion of Earth
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
SpaceX’s Starship and NASA’s SLS Could Supercharge Space Science
Scientists are beginning to dream of how a new generation of super-heavy-lift rockets might enable revolutionary space telescopes and bigger, bolder interplanetary missions
Departments
Astronomy
Are We Alone?
Our Sun Could Someday Reveal the Surfaces of Alien Earths
Avi Loeb's Galileo Project Will Search for Evidence of Alien Visitation
Scientists Plan Private Mission to Hunt for Earths around Alpha Centauri
Extraterrestrial Life
A New Recipe for Hunting Alien Life
How Did Life Begin?
A Mysterious 'Alien Beacon' Was Actually a False Alarm
How Scientists Could Tell the World if They Find Alien Life
How to Search for Life as We Don't Know It
Microbiology
Hardy Microbes Hint at Possibilities for Extraterrestrial Life
Climate Change
Could an Industrial Prehuman Civilization Have Existed on Earth before Ours?
Space Exploration
Spy Satellites Confirmed Our Discovery of the First Meteor from beyond the Solar System
Want to Talk to Aliens? Try Changing the Technological Channel beyond Radio
Planetary Science