NASA Has Launched the Most Ambitious Mars Rover Ever Built: Here’s What Happens Next
Perseverance will stow away rocks for eventual delivery to Earth and will listen for Martian sounds for the first time
Volume 3, Issue 5
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Features
How Many Aliens Are in the Milky Way? Astronomers Turn to Statistics for Answers
The tenets of Thomas Bayes, an 18th-century statistician and minister, underpin the latest estimates of the prevalence of extraterrestrial life
This Twist on Schrödinger’s Cat Paradox Has Major Implications for Quantum Theory
A laboratory demonstration of the classic “Wigner’s friend” thought experiment could overturn cherished assumptions about reality
Departments
Space & Physics
A Movie of the Evolving Universe Is Potentially Scary
This Photo of the Sun Is the Closest Ever Taken
Mystery over Universe's Expansion Deepens with Fresh Data
Scientists Unveil First Ever Pictures of Multiple Planets around a Sunlike Star
Could We Force the Universe to Crash?
The Sciences
Quantum Tunneling Is Not Instantaneous, Physicists Show
Higgs Boson Gives Next-Generation Particle Its Heft
Time's Arrow Flies through 500 Years of Classical Music, Physicists Say
The Most Confused of the Scientific Branches
Policy