Recent studies show comet dust influenced earlier measurements of water’s origins on Earth, challenging previous findings.
A celestial object found in 2021 within the asteroid belt was confirmed as a main-belt comet, distinguished by its icy composition and comet-like behaviors when near the Sun. Researchers emphasize the ...
Scientists have long debated how Earth became rich in liquid water after the planet formed about 4.5 billion years ago. Now a ...
Astronaut Sunita Williams recently tested the Astrobee, a robotic flyer which is designed to help humans perform daily chores ...