Initially, I thought the spiral arms were just 'highways' packed with stars, with a density surely an order of magnitude ...

For a long time, Jupiter had always been in my mind as that 'gas ball' composed of hydrogen and helium from documentaries. My imagination made me think that any celestial body could easily penetrate ...

Launched in 1977, Voyager 1 became the farthest object ever made by humans, carrying Earth’s message to the stars. This ...