Its speed depends on whether the sound is high-pitched or low-pitched On Mars, the speed of sound depends on its pitch. All sound travels slower through Mars’ air compared with Earth’s. But the higher-pitched clacks of a laser zapping rocks travels slightly faster in...
Two Russian cosmonauts and a NASA astronaut landed in Kazakhstan on March 30 after undocking from the International Space Station and flying back to...
4-BILLION-YEAR-OLD RELIC FROM THE EARLY SOLAR SYSTEM IS HEADED THIS WAY Denizens of deep space, comets are among the oldest objects in the solar system. These icy “Lego blocks” are leftover from the early days of planet construction. They were...
