Astronomy
We've discovered a door to a hidden part of reality – what's inside?
'Most impressive!' Darth Vader's screen-used 'Star Wars' lightsaber could fetch $3 million in September auction
Humidity from Corn Sweat Intensifies Extreme Heat Wave in U.S. Midwest
Humid heat is blanketing the eastern U.S. this week, exacerbated by “corn sweat” in the Midwest
Could AI Have Prevented SkyWest Airliner’s Near Collision with a B-52 Bomber?
A SkyWest pilot’s last-second decision could have prevented a collision that air-traffic controllers may not have foreseen
Astronomers crack 1,000-year-old Betelgeuse mystery with 1st-ever sighting of secret companion (photo, video)
ESA selects 5 rocket companies for European Launcher Challenge
How Humility Can Restore Trust in Expertise
Acknowledging the limits of one’s own knowledge could be as important a signal of expertise as credentials and confidence
Amateur astrophotographer captures trio of breathtaking nebulas from the Central Australian Desert (photos)
Should we preserve the pre-AI internet before it is contaminated?
Should we preserve the pre-AI internet before it is contaminated?
Astronauts collect blood aboard the ISS | Space photo of the day for July 21, 2025
Immortal stars could live forever by 'eating' dark matter
Immortal stars could live forever by 'eating' dark matter
Landmark Langlands Proof Advances Grand Unified Theory of Math
The Langlands program has inspired and befuddled mathematicians for more than 50 years. A major advance has now opened up new worlds for them to explore
What are these strange swirls around an infant star? 'We may be watching a planet come into existence in real time'
Who Was First in Flight? This 1925 Scientific American Piece Dives into a Museum Disagreement
This episode of Science Quickly goes on an archival adventure in Scientific American’s July 1925 issue.
Earth will spin faster today to create 2nd-shortest day in history
ExoMars parachutes ready for martian deployment
The most complex parachute system to ever deploy on Mars has successfully slowed down an ExoMars mock-up landing platform for a safe touchdown on Earth.