Since its discovery, some people have speculated that interstellar visitor 3I/ATLAS could be alien technology. Harvard astrophysicist Avi Loeb points to its unusual trajectory and composition as ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

As the winter solstice approaches, Earth is preparing for a brush with a high-speed traveller from the furthest reaches of the cosmos. On Friday, 19 December, a gargantuan space object that has ...

Something very significant has been happening in plain sight, and almost no one seems to be noticing. Over the past few years, there have been televised congressional hearings, repeated news segments ...

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...

Comet 3I/ATLAS, only the third known object from interstellar space to pass through our solar system, is about to make its closest approach to Earth. On Friday, Dec. 19, it will come within about 170 ...

Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS. When you purchase through links on our site, we may earn an affiliate ...

Even visitors from countries like Britain and France, whose citizens don’t need visas, would have to share five years’ worth of social media. By Christine Chung Travelers visiting the United States ...

For one, it came down to timing. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It came from outer space. Interstellar space, to be precise.

The US is proposing that foreign visitors provide their social media history over the last five years to enter the country, including those from Australia, Germany, Japan and the UK who can now enter ...

The Trump administration is proposing to ask visitors from several dozen nations that enjoy visa-free travel to the U.S. to submit additional personal information before entering the country, ...