
What’s this fast-moving wave of darkness creeping across Mars?
Observations by the Mars Express orbiter reveal rapid changes on the Red Planet’s surface from windblown volcanic ash
Joseph Howlett is a staff reporter at Scientific American covering physics, math, astronomy and more. He was previously a math staff writer at Quanta Magazine, and holds a Ph.D. in particle physics from Columbia University.

What’s this fast-moving wave of darkness creeping across Mars?
Observations by the Mars Express orbiter reveal rapid changes on the Red Planet’s surface from windblown volcanic ash

Artemis proves NASA can return to the moon. Now comes the hard question: Why?
Artemis II’s safe return from lunar orbit sparks a debate over the costs, climate effects and long‑term value of going back to the moon

See NASA’s Artemis II mission around the moon in 12 stunning photos
The Artemis II mission’s 10-day odyssey around the moon and back was captured in stunning photographs at every moment. Here are 12 of our favorite images

NASA’s Artemis II moon mission is focusing on its return to Earth
The Artemis II spacecraft is due to splash down on April 10, and NASA officials and the astronauts onboard are gearing up for that return

NASA’s Artemis moon missions are a game changer for astronomy
After decades of planning, NASA’s Artemis program is giving astronomers their long-awaited moonshot

Tracking Artemis II: After its historic lunar flyby, NASA’s moon mission heads home
The astronauts of Artemis II phoned home—and the International Space Station—between stretches of well-earned rest on day seven of the mission

NASA’s Artemis II astronauts celebrate epic lunar flyby with stunning new images
Artemis II’s sixth day was a whirlwind of science and awe, with the mission’s astronauts glimpsing parts of the moon never before seen by any human—and talking to the U.S. president

NASA’s Artemis II moon mission is gearing up for its lunar flyby
NASA officials and the Artemis II crew are starting to prepare in earnest for Monday’s lunar flyby—while also trying to fix the mission’s toilet

NASA Artemis II astronauts in ‘great spirits,’ space agency officials say, as mission nears moon
Friday is the Artemis II mission’s third official day as it makes a 10-day journey around the moon and back

NASA’s Artemis II moon mission just committed to leaving Earth orbit
The Orion spacecraft just completed its last planned major fuel burn, setting its course for the rest of its 10-day journey around the moon and back

Humans have been gambling since the last ice age
A new archeological finding shows that Native Americans were exploring probability through games of chance far earlier than their Old World counterparts

Artemis II’s journey to the moon, day by day
The four astronauts onboard the Orion spacecraft will carry out a packed schedule during their trip around the moon’s far side

How physicists proved that quantum weirdness is a feature, not a bug
Charles H. Bennett and Gilles Brassard, winners of the latest Turing Award, spent their lives touting the advantages of the quantum world

Why mathematicians are boycotting their biggest conference
More than 1,500 mathematicians are demanding that their field’s most prestigious meeting be moved from the U.S.

Is AI solving proofs—or just dividing our opinions?
A new challenge reveals how well AI can tackle true math problems

Astronomers witness the birth of a new solar system
The decades since scientists confirmed the first planet around another star have been rich in discovery, but it’s rare to see a new solar system as it forms

Gerd Faltings, mathematician who proved the Mordell conjecture, wins the Abel Prize at age 71
The Mordell conjecture—now known as Faltings’s theorem—concerns the number of special points on a curve

Something extremely weird is happening to our galactic neighbor. Scientists think they know why
The stars in the Small Magellanic Cloud aren’t behaving the way they should. A cataclysmic collision with another nearby galaxy may be the culprit

NASA’s Perseverance Mars rover discovers even older lost rivers at Jezero Crater
By plying its ground-penetrating radar in the depths of Mars’s Jezero Crater, this rover has found even older deltas buried beneath those seen on the surface from space

As AI keeps improving, mathematicians struggle to foretell their own future
First Proof is an effort to see whether LLMs can contribute meaningfully to pure mathematics research. The dust has settled on round one, and the results are surprising

The universe’s brightest supernovae are turbocharged by newborn magnetars
A new study explains how some supernovae are particularly dazzling—the glow from a magnetic, spinning ball of neutrons called a magnetar. An assist from Einstein is what settled the case

U.S. measles cases surge, AI powers wars, global warming is in a hurry
Why measles cases are rising in the U.S., how artificial intelligence is shaping warfare, and what accelerated global warming means for the world

IBM scientists unveil the first ever “half-Möbius” molecule, with the help of quantum computing
A team at IBM Research has assembled a strange new ring-shaped molecule that bends around like a more complicated Möbius strip

This weekend, six worlds will align in a rare ‘planetary parade’
This weekend will offer a chance to see a rare celestial event—Mercury, Venus, Jupiter, Saturn, Uranus and Neptune all aligned in the sky like beads on a string