All Stories by Celina Zhao
- Space
A newly discovered interstellar object might predate the solar system
3I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.
- Space
A third visitor from another star is hurtling through the solar system
Scientists have found a new interstellar object whizzing toward the sun.
- Artificial Intelligence
How much energy does your AI prompt use? It depends
AI models such as ChatGPT consume serious power. Experts break down where that energy goes, and what you can do to help.
- Genetics
Genetics reveal the origin story of East Asia’s favorite sweet bean
The origin of red beans — also called adzuki — has been murky. A new study says Japan is where it all started.
- Physics
No player can return this killer shot. Physics explains how it works
Squash’s killer “nick shot” has a formula. It’s all about height and timing, a new study shows.
- Computing
There’s no cheating this random number generator
From jury duty to tax audits, randomness plays a big role. Scientists used quantum physics to build a system that ensures those number draws can’t be gamed.
