After the ExoMars Trace Gas Orbiter, a European Space Agency spacecraft orbiting Mars, beamed a signal containing an ...

Some scientists, including Loeb, believe that the ‘Oumuamua comet was an alien object of some kind. Image source: dottedyeti / Adobe “The signal changed directions over time, exactly matching ...

There were reasons to be (a little) excited about the signal, while also plenty of reasons to be skeptical. We have suggested ...