Located in Earth’s southern hemisphere, Australia is the smallest continent among the seven, spanning over 8 million square kilometers or 3 million square miles, National Geographic reports.

Earth, in turn, is nothing more than a molecule in the incomprehensibly vast cosmic ocean. Given the full scope of the universe's size, or even Earth's size in relation to other planets in our […] ...

An asteroid the size of a house that was discovered Monday is projected to pass by Earth on Friday. The near-Earth object, called 2023 EY , has been posted on NASA’s asteroid database and listed ...