Space
Nasa told to set space sex guidelines before 'things get out of hand' ahead of Moon missions
Experts argue there is an 'urgent' need to look more closely around human reproduction beyond Earth
Donald Trump ‘set to reveal UFO secrets’ in bombshell speech ‘ready to go’
The President has previously teased that he has heard 'very interesting things' about the possibility of alien life
Nasa lifts lid on mysterious 'glue' substance shaping universe after releasing most detailed map yet
Scientists hope the striking new images will shed light on how galaxies first formed
