The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to ...
These images mark an early milestone in the mission, confirming that OSIRIS-APEX is healthy and on course for its 2029 ...
The asteroid, known as 2022 RD2, belongs to a rare class of space rocks called Arjunas. These objects travel around the sun ...
About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...
Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.
Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...
Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...
"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.
In the low-grade lens of the TV cameras, between 1969 and 1972, the men who walked the moon were transmogrified into low-gravity Cold ...
About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia ...
Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...
New research suggests Earth's Moon formed from the catastrophic collision of our planet with its "sister" planet, Theia, born nearby. This "sibling" planet theory, supported by iron isotope evidence, ...