“What?” NASA astronaut Peggy Whitson exclaimed after her fellow Shane Kimbrough radioed her saying, “Peggy, I don’t have a shield.” It was Thursday, March 30, 2017, and Whitson was tethered to the ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. What is below Earth, since space is present in ...

AUSTIN (KXAN) — The Earth is getting darker; the planet itself, when viewed from space, appears darker than it did in the past. The upper half actually appears to be getting darker than the bottom ...

Scientists have identified three Earth-sized planets orbiting two stars in the TOI-2267 system. Remarkably, planets transit around both stars — a first in astronomy. The system’s compact, cold nature ...