Avi Loeb, a cosmologist who studied black holes and served as head of Harvard’s astronomy department until 2020, was recently ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

After the famed Betty and Barney Hill encounter in 1961, alleged alien abductions were everywhere—and most of the tales followed the same patterns.

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...

Harvard astrophysicist Avi Loeb, known for his controversial extraterrestrial theories, is now leading a new Trump ...

Since the 1960s, scientists working with SETI (Search for Extraterrestrial Intelligence) have been monitoring the universe ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, funding, and fierce criticism.

If you're a skeptic, these UFO sightings will convince you that the truth is out there—and it may not be from Earth. Eerie UFO sightings we can’t 100% explain Everyone has an opinion when it comes to ...

Astronomers may have witnessed one of the rarest and most dramatic cosmic events ever seen: a long-sought intermediate-mass ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...