Rhinos have an evolutionary history that spans over 40 million years, encompassing all continents except South America and ...

The moon's heavily cratered surface serves as a testament to how Earth's closest celestial neighbor has become a figurative magnet for space rocks during its 4.5 billion-year history. One of the best ...

Mercury is small, but full of surprises. Discover its frozen poles, strange craters, and active magnetic field in this deep dive into the closest planet to the Sun. Donald Trump health update issued ...

Mercury is already the smallest planet in the solar system (unless you still include Pluto, which some of us are still bitter about). While it is already the smallest, it is actually shrinking even ...