
The Hubble Tension Is Becoming a Hubble Crisis
A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts increasingly vexed

The Hubble Tension Is Becoming a Hubble Crisis
A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts increasingly vexed

When Was the First Exoplanet Discovered?
Evidence of alien worlds goes back farther than you think


Supersymmetry Washes Out at the Large Hadron Collider
Supersymmetry, long considered the golden child of theoretical physics, has officially lost its luster at the world’s reigning particle accelerator

When Scientists Don’t Correct Errors, Misinformation and Deadly Consequences Can Follow
Uncorrected errors in science and the unconscionable reluctance to correct them erodes trust in science, throws away taxpayer money, harms the public’s health and can kill innocent people

Newfound Exoplanets around Barnard’s Star Resolve Long-Standing Astronomical Quest
Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a cautionary tale from planet hunting’s prehistory

Crab Memes Amplify Mistaken Ideas about Evolution
Memes about repeated evolution of crabs have been co-opted to joke about technology and “ultimate forms.” They’re hilarious, but they oversimplify natural variation, giving bad arguments a scientific veneer

‘City Killer’ Asteroid’s Earth Impact Risk Rises and Falls Again
Asteroid 2024 YR4’s risk of hitting Earth is shifting with new data, astronomers say

Firearm Forensics Is Still Troubled by Systemic Failure
Three forensic examiners at the Rhode Island State Crime Laboratory last year mistakenly concluded that cartridge cases from a crime scene matched a specific firearm. The error exposes systemic flaws that risk wrongful convictions

Why Elon Musk’s ‘Fork in the Road’ Is Really a Dead End
Elon Musk’s Fork in the Road isn’t just a sculpture—it’s a monument to the tech world’s obsession with civilizational survival, which has its roots in the search for extraterrestrial intelligence

How Many Planets Are in the Solar System?
The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define

Teaching Evolution Has a Bright Future in the U.S.
A century after the Scopes trial, hopeful prospects beckon for teaching the unifying principle of the biological sciences in the U.S.’s classrooms

Saturn’s Rings Are Disappearing—But They’ll Be Back
This year, from Earth’s perspective, Saturn’s rings will appear nearly edge on, making them almost invisible