The US government whistleblower Edward Snowden believes encryption might make it difficult or even impossible to distinguish signals from alien species from cosmic background radiation.
The supermassive black hole is 40 million times as massive as the sun and powers a quasar that existed 700 million years after the Big Bang.
The asteroid zoomed by Earth at a perfectly safe distance of around 1.8 million miles (2.9 kilometers).
Images show surprise changes to the spacecraft as it interacted with the atmosphere.
aliens know we exist. unfortunately for us, they are much more advanced than us on every level and studying our destructive behaviour, its best that we are left alone for now.
we are probably seen as hillbilly to them.
OR they are in the same boat as us and can't communicate with us.