Season 4
Episodes
1 The Time Travel Enigma May 15, 2018 
2 Mission to the Red Planet May 22, 2018 
3 Hunt for the Edge of the Universe May 29, 2018 
4 Journey to Alien Earths Jun 5, 2018 
5 Wrath of the Black Hole Jun 12, 2018 
6 New Race to the Moon Jun 19, 2018 
7 Mars: The Next Frontier Jun 26, 2018 
8 Secret History of the Juno Mission Jul 10, 2018 
9 Mystery of the Northern Lights Jul 17, 2018 
10 Pluto's Strange Secrets Oct 14, 2018