Giant asteroid flying by Earth next week looks like it’s wearing a face mask Posted on April 28, 2020 by Alien UFO Sightings NASA thinks alien life might be hiding in ancient caves on Mars…AliensScientists think if there is life on Mars it’s likely to be hidden in deep underground caves. This theory is supported by Nasa experts and the US sp… Giant asteroid flying by Earth next week looks like it’s wearing a face mask