The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

GALILEO: Good morning, guys, I hope you're having a lovely day. I am Galileo Galilei, a scientist from ... to see my 'How To' film on creating your own telescope. Bye-ee! This vlog style film ...

The space lumps were captured by Nasa's Chandra X-ray Observatory and the Hubble Telescope, which teamed up for the stunning picture. Nasa said that the purple space lumps surrounding the planet are ...