The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

Learn the key physics definitions of position, displacement, velocity, and acceleration explained clearly and simply. This quick breakdown helps build a strong foundation for understanding motion in ...

The discovery of the first interstellar visitor, a space rock called ‘Oumuamua, sent waves of excitement across the scientific community. It also started a mystery. The object had all the ...

CAMBRIDGE, Mass. -- A mysterious phenomenon detected by space probes has finally been explained, thanks to a massive computer simulation that was able to precisely align with details of spacecraft ...

When the first interstellar comet ever seen in our solar system was discovered in 2017, one characteristic -- an unexplained acceleration away from the sun -- sparked wild speculation, including that ...