This article is almost free of information and the conclusion is a slightly extended version of the headline:
"[...] So, do aliens exist? Many scientists believe that humans need to work even harder to determine whether there is extraterrestrial life out there, let alone whether or not aliens have visited Earth. [...]"
Judging by our primitive visits to Mars at best we could hope for some sort of wreckage or abandoned one-way technology.
If we look at our visits to the ocean depths, we only leave real time traces of our presence.
Assuming we aren’t the aliens and that aliens didn’t seed our planet with life, then if they did visit they didn’t find it compelling enough to stay for very long.
> Interested in all things in outer space and exploration? We are too. Take a look at open positions at Northrop Grumman and consider joining our team.
Looks like Northop Grumann is targeting the Jeremy Kenyon Lockyer Corbells of the world.
This article is almost free of information and the conclusion is a slightly extended version of the headline:
"[...] So, do aliens exist? Many scientists believe that humans need to work even harder to determine whether there is extraterrestrial life out there, let alone whether or not aliens have visited Earth. [...]"
The opening question remains unanswered.