• 'Boo Deng' steals the show at NASA JPL's annual pumpkin carving contest (photos)
• China's Shenzhou 19 astronauts take the reins of Tiangong space station (video)
• 'Alien signal' sent from Mars decoded by father-daughter team
• Hubble watches neutron stars collide and explode to create black hole and 'birth atoms'
• Which is better, Black Friday or Cyber Monday?