The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

We’ve likely had at least one close encounter of the 3I kind before. Harvard scientist Avi Loeb claims that not only does 3I/ATLAS potentially have alien origins, but that this wouldn’t be the first ...

Scientists have given their final verdict on the mystery alien object hurtling towards Earth in weeks. The object, named 3I/ATLAS, has been the source of scientific debate for months. Unsure of what ...

Here’s what you’ll learn when you read this story: Much about interstellar objects still eludes us, but researchers figured out what it would take for a hypothetical space rock to collide with Earth.