Scientists say space aliens could hack our planet

With all the news stories these days about computer hacking, it probably comes as no surprise that someone is worried about hackers from outer space. Yes, there are now scientists who fret that space aliens might send messages ...

The three surprises of 'Oumuamua

One of the defining moments in planetary astronomy in 2017 is that this is the year we discovered the first astronomical object to enter the Solar System from interstellar space. Now known as `Oumuamua (Hawaiian for "scout"), ...

UFO believers got one thing right—here's what they get wrong

The past few weeks have been good for UFO believers. For decades they've clamored for "disclosure"—an admission by the government that it knows of galactic gatecrashers, and that aliens are irrefutably here. This always ...

Project Blue and the quest to photograph exoplanets

The world's collective imagination to answer the age-old question, "Are we alone," has been reignited now that we understand exoplanets – planets in orbit around stars other than Earth's Sun – are not uncommon. There's ...

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