How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

President Trump directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of fascination — and spawned more than a few wild ...

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 light years away in the constellation Leo, it's attracted a lot of attention ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

More than 2,500 alien plant species could find suitable conditions in the Arctic, especially in northern Norway and Svalbard.

Arnie said, "Get your a* to Mars", but is it really a good idea? We asked the experts about our Martian future.

The bony facial protrusion might be an evolutionary byproduct that resulted from changes to other parts of the skull, according to a new study ...

Preeclampsia, a complication of pregnancy that involves high blood pressure, could have led to a decline in Neanderthals' fertility, a new study suggests.