Space
- Artificial Intelligence
Readers marvel at AI, space missions and wombat poop
Readers had comments and questions about defining artificial intelligence, the New Horizons space mission and more.
- Astronomy
Ultima Thule is shaped like two lumpy pancakes
Scientists are rethinking the shape of the space rock, once thought to be a snowman.
- Planetary Science
A basketball-sized rock hit the moon during the last lunar eclipse
Professional and amateur astronomers joined forces to analyze the impact.
- Astronomy
A space rock collision may explain how this exoplanet was born
Simulations suggest a planet roughly 2,000 light-years away formed when two space rocks collided, supporting the idea that such events are universal.
- Planetary Science
Titan’s oddly thick atmosphere may come from cooked organic compounds
Saturn’s moon Titan might get some of its hazy atmosphere by baking organic molecules in a warm core.
- Planetary Science
NASA’s Curiosity Mars rover weighed the mountain it’s climbing
Curiosity measures gravity as it drives, allowing scientists to weigh Mount Sharp and determine that the rock is less dense than expected.
- Planetary Science
The latest picture of Ultima Thule reveals a remarkably smooth face
Kuiper Belt object MU69, nicknamed Ultima Thule, is largely unmarred by impact craters, suggesting the Kuiper Belt might lack small objects.
- Space
It’s time to start taking the search for E.T. seriously, astronomers say
Astronomers are hoping to make looking for alien technology an official science goal of NASA.
- Planetary Science
We spent New Year’s Eve in the Kuiper Belt
Editor in Chief Nancy Shute discusses Science News' coverage of NASA's New Horizons spacecraft's flyby of Ultima Thule.
- Planetary Science
Ring ripples reveal how long a day lasts on Saturn
Clues in Saturn’s rings divulge the planet’s rotation rate: 10 hours, 33 minutes, 38 seconds.
- Physics
A new gravitational wave detector is almost ready to join the search
Buried deep underground, Japan’s KAGRA detector relies on components cooled to just 20 degrees above absolute zero.
- Planetary Science
The moon’s craters suggest Earth hasn’t erased lots of past impacts
A new look at moon craters suggests the Earth and moon suffered more impacts in the last 290 million years, and the Earth retains its biggest scars.
