‘Jaw-dropping’ fossils reset the clock on when complex animals evolved

A treasure trove of fossils from China shows that the Cambrian explosion may have been less explosive than scientists once believed

Why humpback whale rescue effort got called off

It was a tough decision to leave Timmy the humpback whale to die on a small island in the Baltic Sea

NASA’s Artemis II mission is officially on track for the moon

The Orion spacecraft just completed its last planned major fuel burn, setting its course for the rest of its ten-day journey around the moon and back

Where did the ‘Oh-My-God’ particle come from?

A single subatomic particle from deep space had the same energy as a baseball pitch, and scientists still don't know how it got here

See the first stunning images of a massive coral reef that has lain hidden for decades

These incredible corals form what may be one of the world's largest reef systems—and researchers have a plan to restore it

NASA’s Artemis II astronauts put spacecraft systems to the test on 10‑day mission

Artemis II blasts off on a high‑stakes lunar flyby, marking NASA's first crewed mission to the moon in decades

Where is Artemis II now? NASA mission is committed to the moon

The second day of the Artemis II moon mission saw the crew perform a series of maneuvers that put the Orion capsule on course for the lunar far side

How NASA’s moon mission could help transform space medicine

Artemis II's AVATAR experiment will see organs-on-a-chip travel to the moon and back, revealing how such a journey affects the body's cells

NASA’s Artemis II astronauts may catch a comet—if it can survive the sun

Amid a journey of celestial spectacles, the Artemis II astronauts may spot a comet—if it survives a dash past the sun

Inge Lehmann and Earth’s deepest Secret

Science writer Hanne Strager explores how the trailblazing Danish seismologist Inge Lehmann overcame self-doubt to discover that Earth has a solid inner core, overturning the long-held belief that it was liquid

8 HOURS AGO

H.H.S. Takes a First Step Toward Restoring Vaccine Advisory Committee

A federal judge last month questioned the legitimacy of the panel and overturned its recent work. A notice suggests that it may be revived on Robert F. Kennedy Jr.’s terms.

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 ten-day journey around the moon and back

What are NASA’s Artemis II astronauts eating? 58 tortillas, 43 cups of coffee and a lot of hot sauce

The menu for NASA's moon mission has 189 unique items on it and mirrors that of the International Space Station

7 HOURS AGO

Meet the Astronauts of NASA’s Artemis II Moon Mission

Can the four astronauts of the NASA mission Artemis II make a difference in a distracted and divided world?

A DAY AGO

Highlights from Day 2 of Artemis II.